I've been playing mch almost exclusively and have not had a single party exclude me for being mch, whether it's for savage or ex primals or whatever. I've also never had anyone make negative comments about my class or my damage. Killed ex primals around 60 times or so each and gotten to v3s both last week and this week and then ran v1s a couple extra times for fun, and not once has my class caused any negativity at all. I think people here are grossly overstating how big of an issue this is. If you know how to play you will be first or second highest dps in most party finder groups anyway.