Precisely. I like Brook but in retrospect there is little value added to his career by jumping up two weight divisions and getting crushed by Golovkin. The key comment here is when your own division is deep and there are good fights to be made. Who knows what Brook could've accomplished had he stayed at welter, maybe venturing to super welter if he ran out of opponents (doubtful).
The Brook-GGG fight and the Garcia-Spence fights are validation once again of why we have weight divisions. They also point out the gross advantage held by those who find a way to cheat the weigh-in system to show up 20-30 pounds heavier than the other guy.
Bookmarks