De Ridder won Round 1, lost the next three. If Brendan Allen wasn't a dumbass, he'd be legitimately dangerous.
I'm kind of torn on RDR quitting on the stool. Go out on your shield, fight to the bitter end is all well and good, but MMA is a business, and if you have no reasonable path to victory, it is reasonable to throw in the towel, avoid damage you can't protect yourself from, and live to fight another day.
Business brain says: "Good call." Inner Just Bleed Bro: "What a bitch."
Allen wants do-overs with Strickland and Imavov. At this point and given the state of 185, why the hell not? Make something interesting happen.