No, it is NOTHING like that. Perhaps you should consider reading more than one sentence. In those tubes there is different air pressure ahead of and behind the module. That difference in pressure causes the module to move. In the hyperloop, the air pressure is THE SAME throughout the tube. The pressure is kept low to reduce air resistance, NOT to provide propulsion. And the compressors are used to create the air cushion to keep the pod away from the tube. If the compressors fail, there is this amazing new invention called 'wheels' which contact the tube and allow it to move (at much lower speed). ALL of the propulsion is done by linear induction motors, which are hardly a new invention (ride Rockin Roller Coaster at Disney World if you want to see what they can do).
And there is no 'train', it is single 28-passenger pods.