alt Hacker NewsI dunno, I've worked on some pretty big projects that have used lots of coroutines, and it's pretty easy to avoid all of the footguns.
I'm not advocating for the ubiquitous use of coroutines (there's a time and place), but they're like anything else: if you don't know what you're doing, you'll misuse them and cause problems. If you RTFM and understand how they work, you won't have any issues.
They're a crutch for people who don't know what they're doing, so of course they invite a whole host of problems that are harder to solve than doing it right in the first place.
If you strictly require people to know exactly what they're doing and always RTFM and perfectly understand how everything works, then they already know well enough to avoid coroutines and SendMessage and UnityEvents and other footguns in the first place.
It's much easier and more efficient to avoid all of the footguns when you simply don't use any of the footguns.