I think there's more reasons that are not so negative.

First of all, vi predates all those others. That means it's always had an active userbase werken other tools were in fashion. Changing the bindings at any point in time would have hurt a lot of people's muscle memory. It would also be extremely annoying when one has older versions on some machines with the old bindings and some with the new. I deal with the Mac vs Windows/Linux copy paste problem every day.

Also, vim just has a ton of functions and there's always going to be some shortcuts that will be awkward on some or other keyboard layout.

Finally, you don't have to use it :) or you could distribute your custom config file with bindings to every machine you use.