The existence of two opposing PEPs says to me that there may be a case to be made for either side, so we should default to not changing things.

I used to think it’s likely that you can make a much stronger case for one side, but I personally feel that’s more for early language development phase. If it’s been a certain way for a long time, it ought to be overwhelmingly obvious and overwhelmingly supported by the community to change it. And even then I feel a bit of doubt.