This is no big deal..if that's an excuse, shut his ass up in the rematch. All or nothing.
It's a very big deal because it's about character and mentality.
He fired his black trainer in black history month who showed compassion and care for his welfare. He's on record saying he's scared to get knocked out and he made a promise to his daughter she wouldn't have to see that. After making such a big stance it shows how fake he is and he'll throw his people under the bus for his ego.
Blaming the costume is a coward and bytch move. He's a weak minded man who has natural size and a hard punch but he's mentally fragile.. He does what Shelly and them tell him, till this day.
He may win the rematch even though he will be a clear underdog now but he still has that punching power but with his weak and bytch made character if he continues to fight top competition he's a disaster waiting to happen. He may catch a body on his record, his own, hopefully not, but sooner or later he will get humiliated more and more.
His delusion and ego have destroyed him, all this fool had to do was take some responsibility and vow to come back better, that's all, if it was a strong statement and genuine people would have respected it and maybe even be interested in a 3rd fight more. Now he just seems like a delusional rambling clown making excuses who can't be respected or trusted and a fraud.