The rules do make a certain level of sense. In general security is designed to keep people out of where they aren't supposed to be, once you are inside things are designed to be user friendly, it is a balance of "making things secure" vs. "letting stupid people be able to do their jobs".
Also, in general, corps know a basic lock isn't going to stop a Shadowrunner from breaking in, but it might slow them down a bit, which might be enough.