I'll be the first to say I don't necessarily approve of the "if you don't like it, get out" thing, but in response to something like this I wouldn't call it so far out of line; we're very much not "completely unresponsive," (seen here, here, and if I could find the ones before those without putting in far more effort than I'd like to, they'd be here as well) and are aware it isn't perfect- by definition, any metagame anywhere cannot be "perfect."
Our rule 5 on the server, put into simpler terms, is basically "to each their own." As Ame put it in the FAQ-
(seen here)
I for one don't run anything anyone would consider overpowered, but that's not because it's overpowered; I just choose not to. In the same vein, anyone else is allowed to use whatever they choose to, and evasion is no exception. If you find it that game-breaking, none of us will stop you from using it as well if winning is such a big deal to you.