Some bugs or glitches are still funny, like what you can do with pubg vehicles, but I get your point.

With the tickrate example the situation is different. It is not a bug for one. I don't think many people at all would have noticed it, but it does affect hit registration and such, so I think a lot of people would have just complained about the symptoms caused by the low tickrate - now they are just able to complain about the exact thing that is wrong.

The point is who will notice the tickrate, though. It's a shady thing to do especially when the beta had it right and we can say that a lower tickrate is objectively worse with proof. If they, for example, decided to completely rebalance all the weapons from what they were in beta - that's more subjective thing and no one can straight up say that this is wrong (well, unless of course every weapon did literally 0 damage or some other edge case) so this would have been fine.