This does seem to be a problem in the NHL (Hossa) but if Lupul had a legitimate complaint he would be playing. I'm sure the NHLPA would work very hard to make sure their healthy players are not being put on IR when they aren't injured.
And as a side-note...Hey Lupul, if you are healthy enough to play maybe you should start training and getting in game shape instead living the rockstar lifestyle. Phil Kessel looks in better shape for godssake.
https://www.instagram.com/p/BXnQOIoDXsA/?hl=en