Going backwards to layout makes no sense to me. They then can't tell me what to type, we get to fight about env defaults, etc.. And for what? If your composition is any good it is approaching the abstract of code so looking at your hands and some visual feedback is of little value as it traverses the whole context.
After a few years of trying to get along directly in local pair programming or similar with people with local largely insane keymaps I decided to make use of fences and privacy making good neighbors and I don't want those fences ruined.
Even without my intended uses for this abstraction, positional habits is the first step of getting people out of the crib, a crib is easy to sell a start in but not a place to retire.
Helix OTOH looks good.