Long ago, I learned video editing on a CMX tape based system. The key bindings on that system remain in place in pretty much every video application today. (Spacebar => play/pause, j/k/l => reverse/stop/forward, i/o => in/out) Sometimes, keybindings just make sense and for them to not do it definitely as you say feels disturbing. For new apps that don't, it's like did you live under a rock in a cave and never see any other preceding program that you are making, or do you honestly think yours is better. I can assure, they aren't.
Never touched a CMX, with the EditDroid being the oldest I ever saw and it had a trackball/scrub knob.
But the vi keybindings are directly from the LSI ADM 3A terminal, which is what Bill Joy wrote vi on.
It had overloaded hjkl for the arrow keys compared to it's predecessors like the 7700A and successor 3A+ that had dedicated arrow keys.
The fact that Home/~ were the same key thus ~ being your home directory and that esc was where the tab key is on modern keyboards explains a lot about the vi keybindings.
