Tested with my brother last night. Confirmed. MK3 Cyrax absolutely CAN bomb trap.
It looks like what happened, oversight or not, is that MK3 Cyrax seems to be exactly what they should have done in the first place. The command throw tech frames are the same as what they are in the patch, but the bomb trap still works.
It also looks like the opponents meter scales up rather quickly while you're hitting them with it, which means that you'll almost never get the full combo off anyway because they can build up to a breaker very easily.
I hope they leave it like this, because after extensive play last night, the bomb trap is NOT imbalanced at all sbecause of the previously two mentioned things. Said all along that the tech frames were the only problem, and after last night, I'm absolutely sure of it.