Sure they can be, but the whole ethos behind it is "don't make me think about anything other than the application." So by default the majority are looking for

Sure they can be, but the whole ethos behind it is "don't make me think about anything other than the application." So by default the majority are looking for hosted services, otherwise they'd just build their own stack. For anything other than some organization building a bunch of applications, that same Nocode Dev has no need to ever migrate so long as some major service provider is doing it for them.