Having to switch between "normal" and "insert" modes all the time is one of the things that turns me off from vi and its family tree, and is consequently something that turns me off of Helix, too. There are a lot of neat ideas here, though, and I wonder how many could be hacked into other editors like Emacs.
If I know the first letter or two of the command, then it’s only 3 keystrokes away. For example, “Evaluate Math Expression” is “cmd+shift+p”+”ev”+”enter”. The command palette also provides great additional explorability with the fuzzy searchable menu + descriptions.
This is a far superior workflow because I have access to every possible command in the editor / installed extensions (very easily mapped to my own shortcuts of I want) without the need to memorize anything. I can even reverse-search commands by typing the shortcut and it will tell me the commands bound to that shortcut.
I could be missing something, but Vim and family feels like a huge step backwards in workflow for me.