Yes. Unless by "enthusiasm" you mean "insanity", then the answer is "No". The Atari community in general is a much healthier one, without all the nut cases you find in "our" camp. Ditto for any other retro camp.
But Amiga is far from a stagnant platform, so it's not surprising that there are so many very strong opinions on the direction that things should be moving. If it were all retro-enjoyment, the Amiga forum would be a pretty peaceful place.