Yep, the NFLPA really sucks.
Well truthfully you can't blame the NFLPA for doing a bad job in this instance. It's comprised of people already in the NFL.
Now let's say you were in the NFL. Do you want more money to go to newly drafted players or do you want more of the pie to go to established players like yourself?
So it's a huge conflict of interest wherein the people are just attempting to maximize their potential for income. The new draftees are the just the ones who don't really get represented/screwed by their soon-to-be union.