Why do most Death Metal fans hate Job for a Cowboy?

...Despite they're *slight* problem with repetition in their songs. I mean...they were once Deathcore, but they broke away from the pig squeals on Doom and went transformed themselves into normal Death Metal. I know they aren't the best, and Jonny is no Corpsegrinder, I just don't see what the hate is all about. They have a great drummer and they are very technical...so why hate?