The NFL doesn't care what the increased travel is doing to the teams as long as it increases the owners profit margin. If the NFL cared about players they would eliminate the Thursday night games where the injuries occur at a higher rate. Also, short weeks don't give your body time to rest and playing the next game can be brutal without proper rest.

Just imagine how the trans continental flights and jet lag will affect the teams playing in another part of the world before getting on a plane for the long flight home.