I would disagree...
In the age of Social media, feedback and reviews are almost useless, as 'the spin machine" and "hype train" can spin whatever narrative they wish, but that doesn't make a product good, bad, or even viable...
Not to mention, that many "reviews" these days are not even from the customer/audience base (and more from 'outrage', political narrative, attention).
Sales are the only thing you can go by...
But to say a product is "failing" you need to account for all factors and Covid is a factor....(could be up, could be down)....
Until you look at the big picture, you have no real idea...