I think it's important to remember that you can't really buy any decent hardware to run OS4 on anyway.
So what is the problem with people wanting to do something useful on a Mac like running OS4?
As for Apple well do they really care what people do with old PPC Macs? Nope...that's why you can install Linux on them if you want to....I see no issue with Apple.
The only issue is Amiga are a bunch of losers who could get the goddess of fertility pregnant after a 3 day marathon orgy