The UFC does not own strikeforce. They own WEC. Dana White was upset because he's tried hard to get the public away from thinking of MMA as gladiators in the ring fighting "to the death" and has been trying to get people to look at it as a sport, and he felt like what happened threw a wrench into it. These guys claim to be "disciplined" martial artists, and they get into a brawl on national tv. You can even see them kick him while he's down. Dana White hates strikeforce, so of course he's going to say something bad about it.
Dan Henderson has many fights at 185. His classic Bisping KO was at 185, and he fought Anderson at 185.