Odd thing to just quit over
Not really. (Speaking as a former official, this is how it seems to me).
It's his job to determine if the signal to review came in time. it is NOT the review center's call to tell the ref it came in first, the discretion is entirely his. Then they pulled a power play forcing him to do it, making him have to look stupid in front of the fans and the televised audience that the play that actually was allowed to proceed didn't count and they were going to review (and apparently ignore the roughing penalty, which is enforceable even in a dead ball situation).
Then they don't even have enough to overturn it anyhow, making the whole thing an even bigger farce.
If you can't trust the people above you to support you (and make you look foolish in front of the public without any good reason), then I can totally see why he was totally disillusioned by it. It was a play that didn't need review anyhow, none of the officials received the buzz, and then got big boyed by the conference ignoring their own bylaws to make what they wanted to happen.
Screw that. They clearly don't have their back, I don't blame him at all. If he still enjoys the job he can go to another conference, or even back to the lower divisions. But those crews think of themselves as a team, and have to trust each other. Not to the point of blindly backing up someone's mistake, but to take care of each other if they miss something or to help when they can. Once you don't trust your team mates to have your back and/or are actively working against you, I'd never take the field with them again either. And I have actually told my assigner that personally. I had one "person" who was an arrogant asshat and was constantly showboating and calling out newer officials instead of helping them on the field. And flat out told them if they ever assign me with him again I would do the game and they would have my resignation 5 minutes after it ended.