Because there is no one true ultimate Amiga hierarchy to dictate to the world exactly what an Amiga is through an actual continued retailed product in which they have the rights to solely monopolise and develop as they wish. Instead all that we are left is rehashed, chopped and changed, and beaten senseless versions of what used to be - in 3125 different versions of it. And then, because opinions are like arseholes and everyone has one, and because everyone thinks theirs doesn't stink, they let the internet know about all the perfections and imperfections of all the current flavours of what is available. People then "discuss" these opinions.
Good enough explanation?