I think it had nothing to do with either and everything to do with Manny being past it, he showed he can beat the shyt out of Bradley when he wanted he was landing 10 punch combo's and shyt, but he didnt have the ability to dig deep and finish it off, he no longer possessed the one of a kind stamina, to keep up the accumulation like Barrera 1 for instance, he also lost the killer instinct on top of that, he wanted no parts of a tough match he wanted all ko's but didnt want to work no more, and he was never a one punch ko guy.
Vs JMM he looked like shyt in the 3rd match, couldnt even touch a very touchable fighter in JMM. the 4th fight it was no domination despite Manny fans agenda 1-2 was toss ups like average measuring rounds the both landed nothing really, he gets knocked halfway across the ring in the 3rd, got a stepping on JMM foot knockdown in the 4th, hurt JMM but once again couldnt put the exclamation point on that nikka in classic Manny fashion. Round 5 JMM was playing possum making Manny think he was more hurt than advertised and landing crushing bombs, then got slept trying to make sure he stole the round...