Err...what? My thoughts on Greg are pretty much neutral. In fact, I don't even follow what drama may or may not involve him, I just follow his mod so I know what to do in Ultimate. But so what if mDiyo is unreasonable. Maybe mDiyo's position - and I'm totally making this up right here - is that TC is meant to be played as a standalone mod and he doesn't care whether it breaks other mods at all. Even then, Greg is STILL the one responsible for fixing any imbalance he decides is caused when TC and GT run together, even if that fix is "disable all of X" or even just a carpet bomb "disable TC when GT is installed". That's what we in the rational world call "trying to solve the problem".
Blaming is worse than useless. It not only isn't a solution, but it typically puts people on the defensive and actually prolongs whatever solutions might be available. Blaming publicly is both worse than useless and RUDE. That is not an opinion of Greg, that is a judgement of what he did.