Wow, I agree completely; I've never understood two things: how an app with "note" in its name could have such a bad note editor, and why Evernote users aren't more demanding about it getting fixed. On iOS, where I've used it for years, still very basic things don't work: copy/paste, font sizes, checkboxes.. I don't understand how people can use this editor day in and day out without noticing. But maybe people just don't use Evernote for notes - at least not on mobile. This is why I'm hard pressed to justify paying $45 a year for Evernote - why think that the editor will suddenly get fixed if it hasn't for the last five years?
To be fair, they have fixed some editor bugs in iOS, and greatly improved the Android editor, and I find the Mac editor quite usable. But iOS is still inferior to almost any other iOS editor you can name, so paying a yearly fee for its use it pretty hard to swallow.