Hating on fighters for tapping to strikes is absurd. Some of the toughest fighters of all time have tapped to strikes. If anything tapping to a choke is worse than tapping to strikes. Strikes do permanent damage, if you can't defend yoursef anymore you might as well tap. FFS Shogun tapped to strikes.
Lets not act like going up ten pounds, when you're already a huge fw, to fight Eddie Alvarez is the same thing as going up to fight Anderson Silva. Alvarez is an average sized lw. Silva is a huge mw. Alvarez is an easy style match up for Conor, and a somewhat inconsistent and one dimensional fighter. Silva is the best MW of all time.
Just because both situations involve going up in weight doesn't mean they're equal. Silva took lhw fights, but never fought Jones, Shogun, Machida, Rashad, etc. He wanted no part of a title fight at LHW, he fought nothing but easy style matchups there.