This is all coming straight from my ass, but I'll offer some food for thought. I think they are targeting ufc because of the discrepancy between bellator/other orgs and UFC in regards to percent athletes make compared to revenue.
Didn't bjorn say while he was with bellator, athletes we're paid around 50% of their revenue? I don't think UFC is anywhere near that. something like 10% I think?
I think what they will be after is establishing a fighter pay regulatory commission that ensures a minimum payout percentage closer to 50%. they will probably try to make a good case for legislation and once passed, if at all, there will have to be an entity to implement and oversee fighter pay and fine promotions not meeting guidelines.
I think the consensus is once the UFC cooperates, others will fall in line or die on the vine. this would make it fair across the board to all orgs, especially ones like bellator, currently paying athletes higher percentages of their revenue to stay competitive in the market.