weigh ins are part of the sport and a cage side weigh in holds zero interest for me as a fan. Simply don't care.
Impressive thing the power lifter did, I've heard fighters interviewed that say it's endurance, not strength, that gives them the problems when they suck that much weight. So, for some, maybe cutting an extra 10 lbs and being 15+ over is a huge advantage, and for others it would be a detriment. Cage side weigh ins are NOT a must, and based on the continued success of MMA there is little evidence to the contrary.