To be fair, the only times I can recall personally having this issue was with older outboard gear (e.g. my JP-8000), and obviously those can't get fixed by MIDI2.0. I don't know how much current equipment and software do interpolation. Most? All...
I just hope that MIDI 1.0 will continue to be supported. I have lots of hardware using good old midi that just work. Also I have my own projects that I use good old MIDI and 127 different values per potentiometer is more than enough (can't move...