The Jets are doggedly trying to get cap relief from Tebow is the only explanation I can come up with on why he is still with the team. We're sure the Jets are doing everything they can to trade Tebow (and I wouldn't be shocked if he was some sort of throw-in in a Revis trade) but it seems highly unlikely that any team will suddenly become interested.
Tebow is under contract with the team and it is his makeup that he would attend any workouts like this, depsite his unstable status.
It is unclear whether or not press will get access to the players during these workouts next week. I'm sure the lead-up to the draft will be substantially bumpier if they do.