You're not stuck; slowly change addresses with the different companies, people, etc. I did it over the course of a few years without hassle. If you spend $10/year for your own ___domain, then you can use a catchall, and if you ever decide to leave Fast ail for another provider, you don't have to change all the addreses again.
The fact that it requires slowly changing over years is a sign of getting stuck no?
We can theoretically slowly migrate anything. But when effort > X, we consider it being stuck.