"Vim mode" in applications is rarely complete. It's enough to get by if you're doing a simple one off thing but it's no way to live.
Using Vim mode in other editors is like replacing all your silverware with only spoons. It's much nicer, shinier silverware, and everything's going great at first, until I subconsciously reach for a knife.
Isn't it ironic. Sorry I kid I kid. Yes spot on that's exactly what it feels like.