The thing is that vi and emacs have existed since long before those other new editors came around.
What you want is possible to do by configuring your ~/.inputrc (see readline manual page for details), it's just that the defaults are different because they are from a time when many keyboards didn't even have arrow keys (and the ones that had them were in non-standard positions) so most of the shortcuts that became standard in those days are completely different than the ones common today. Given that the terminal is meant to emulate old style DEC VT100 terminals (that's why it's called terminal "emulator") it made sense to use those default that people had grown used to.
Personally, I've grown used to Ctrl+a, Ctrl+k, Ctrl+w, Ctrl+e and Ctrl+y ..I dont have to reach to wherever the Home key is in whatever keyboard I happen to be using at the moment (specially with modern 75%/60%-sized keyboards today). Or use a combination that also requires shift and having to hold so many keys together. In fact I went the opposite direction and customized my Powershell profile while I'm on windows to keep many of those old shortcuts in the Windows pwsh terminal as well.
You are probably right.. it's just one hope I had, I'm not expecting it to happen, but I'll be hopeful until the end.
Hope for the best, prepare for the worst.