I would like to note that 'everyone here liked it,' while not invalid, is not a great metric.
Reddit alone gets 10 times the uniques at least to Shadowrun Tabletop based on my brute force attempts to gauge its traffic using public information vs privileged information I have as a reddit mod. Some further math (backed by both my studies and one of my professors, as this was for a project) showed that it was likely far lower because many of Shadowruntabletop's uniques are likely people hitting the front page looking for Shadowrun information off a google search, as the site's bounce rate is exceptionally high.
That doesn't mean the opinion of people here is invalid, but it does seem to represent a rather minority opinion, backed up by the fact that shadowruntabletop has never been the first choice of the community to the point alternative competitive sites have been created and trend towards being more succesful than the official forums. One can attribute this in part to the fact people will often use facebook and reddit more casually and frequently than going to a specialist site, but based on some information I got from one of the people with access to the analytics for Runner's Union there are actually still more people actively checking their page than Tabletop.
This also makes sense because while the website has made massive improvements its still poorly optimized and laid out, which severely harms its growth and effectiveness as a community and marketing tool for CGL, and hurts their ability to cultivate the community they want under an umbrella they control.
Basically, while its valid to go 'well I like it' its critical to remember that the majority of fans seem to not just not use these forums, but actively seek alternative forums out. It is very likely these ratings are artificially lower than they should be due to a lack of consumer goodwill, especially when it comes to Streetpedia which likely just ate some hate for 6e, but that is... still kinda a major problem for a company that is making a product not just for the general RPG consumer base but for a specific niche fanbase that already has plenty of competition from its own past products. This problem is an ongoing thing CGL needs to figure out, rather than something to shrug at and go 'internet is toxic I guess.' Especially as its been shown that its peers can struggle as well, or thrive. Paizio despite having a loyal and supportive fanbase is struggling with Pathfinder 2e, but the myth of 'edition update hatered' is shown to not be a universal truth with lines like GURPS, D&D, and Hero System all managing to release new editions with minimal fuss or even active support. Sometimes this can be attributed to moving back from something generally disliked (D&D) but other times its just because edition updates are trusted and the company has good will with its fan base (Hero System/Champions, GURPS).
The internet isn't some magic bullet that makes edition changes always rough. The RPG industry is very young and the quality of their PR and community management varies EXTREMELY wildly and its going to be a long term problem. One of the most successful RPG companies, White Wolf, basically doesn't exist anymore as a direct consiquence of losing its fanbase's goodwill entirely. Compounding issues is a lot of people who are managing the brand's image aren't from a 'wageslave' background, which is generally good because I like my RPG companies run by RPG nerds and not businessmen and women, but as these brands become more 'brand-y' its showing more and more some fundementals of PR are being consistently broken due to inexperience or a lack of care.
I expect the problems with book ratings (That regardless of how good or bad they are that they reflect more community goodwill rather than actual quality, look at D&D 4e and how much of a meltdown that caused despite the book being a standard to good RPG in the end!) to get worse, not better, over time, as PR problems do not trend towards 'self correction.' And this is also an issue because if you evaluate SR's presence on online sales its swinging crazy above its 'weight class' vs paper sales, which indicates a massive amount of their business is actually being done online.
So like, even if you don't draw the conclusion 'the book is bad' from the ratings (And, despite not liking the book, I agree you shouldn't, the review rating is very divorced from that and you can get a better idea of that from in depth actual written reviews and seeing how many people hit the same notes) this is still a pretty important piece of data any canny company should take on board and incorporate into their future plans.