I don't see any argument for a change. At most these are arguments why it should've been like that, but not why we should change to it.
As a change both arguments are invalid.
1. As a developer, you use a language. If you develop a language, it may make sense. But as a user of a language, all languages I know already provide a "pop" function. I don't care about iterating myself, particularly not backwards. You're telling to already existngnlanguages to go change their implementation, so you need to make a case why a change is worth it (practical benefits) beyond that it makes sense to you (because you don't want to start the loop from count -1)
2. Everybody else does it is no compelling argument. You have a better chance of compelling the former English colonies of switching to metric altogether.