It's a cliche thing to say, but hey, you don't have to participate.
If you truly support Humble Bundle and what they do, then you would support them in this endeavor as well -- you are giving them some tip as well (and charities if that's your thing). Does anyone really think that since they are doing this with THQ they are going to simply stop supporting the indie community?
THQ made some bad decisions, and they are desperate. This is a pretty clever move for them, and one can only hope a kick in the butt to pay more attention to what gamers are looking for.