I am so used to sed-style, regex powered find/replace, that this use admittedly never occured to me. As a result, multi-cursor seemed mostly useless outside of pair programming that I never do.
I will have to try it out once it lands in neovim just to see if I can wrap my muscle memory around it.
For me the nice thing about multiple cursors is when it would take more time to write the regex than it does to just throw down say 8 cursors and update the spots.
I've always told myself I should learn to do these sed/regex find and replace techniques, but my origins are not sophisticated and I use computers like that orangutan hammering nails in the video with David Attenborough https://youtu.be/IFACrIx5SZ0?si=NcWGBNq272KoYB2i&t=84
It's entirely possible that you don't need multiple cursors