Banning him from training camp but telling the Falcons to pay him= the commish getting harsh with Vick. As he is getting paid, there is absolutely NOTHING the player's union can do.

The league telling the team not to take any action is probably due to financial concern for the Falcons on the part of the league. If the Falcons do anything unilaterally, like cut Vick, they still have a salary cap hit against them for Vick's salary. If the league suspends him, however, the Falcons would probably get the cap room back.