This site is depicted as discussing, among other things, Status Quo Bias. For those who don’t know, allow me to explain:
Just because a certain behavior is common, even among the many, does not grant it legitimacy. There have frequently been various popular sins in various periods. Yes, Minhag has weight, but it doesn’t automatically outweigh all other calculations.
Again, SQB does not refer to the idea that a given custom has always been customary. And SQB isn’t overlooking change; that’s called Normalcy bias. It is the fallacy of appealing to the way things are, claiming they ought to stay the same for an insufficient reason.