That's pretty much exactly what the OP said. A completly shitty product that does just enough that people over look how shitty it is because it 'works' for them. Once it becomes embedded it doesn't even matter if someone comes along with a product that also solves their problem without the bugs and annoyances, because 'they do the same thing.' so why switch.

Engineering quality really doesn't mean much to people, so stop worrying so much about it once the core works without killing the user.