[thefro526]

I looked through the manual, and it seems that you're correct, according to the rules as they are written, only the Human Player and/or Coach is specifically prohibited from touching an opponents ball. I couldn't find any specific mention of a 'driver' touching an opponents ball either.

That being said, I'm willing to bet that if you bring this up in Q&A, or try it as an event (specifically a driver reaching up to block a shot), it'll be ruled as being illegal, or not within the 'spirit of the rules' and a team update will follow.