Helix is interesting but I don't really gel with its editing language (subject + verb instead of verb + subject like (n)vim's). Happy to discuss what I think is lacking in more detail, but basically: the premise of 'you can see what you're about to operate on before you do the action' is satisfied for me by visual mode, and I like macros better than multiple cursors. So I don't want a (subjectively) less efficient editing language for these features. I think I generally agree with the complaints in [1], with the addition that I don't want to have to chord (press shift in the case of Kakoune, I forget what helix does here) to extend a selection.
I've seen that breakdown before and have skimmed it but didn't really find an analytical breakdown of why style X is better/worse than style Y for person Z very useful. Tools preferences are to personal and varying. It really depends on how it meshes with your style and the only way to really test that is to try it out.
I wish they'd add a Vi mode. ;)
[1] https://github.com/noctuid/dotfiles/blob/master/emacs/editin...