The fact that Ctrl-O and Ctrl-I exist is just a tiny example of why the modern editors just can't compete with vim and the plethora tiny productivity features it has.

Hardcore vimmer here, but I don't think you're right. I know at least VSCode has this functionality and probably other editors as well. I don't use vim because of it's features but more because modal editing and the keybindings are cemented into my muscle memory. There's also the extremely lightweight nature that let's me have several projects open in vim at once with little resource impact. Were I to start over today, I might pick VSCode and be just as happy.

I respectfully disagree. I think VSCode's ergonomics pale in comparison to Vim. I just mentioned Ctrl-O, but there's a hundred little other features that I use constantly that VSCode doesn't have, and even if it does, it executes them much slower than Vim does. If Vim's plugin system was improved, it would blow VSCode out of the water.