Nope, that would be a steaming pile of BUUUUUULLSHIIIIT that you are smelling right there!
See, he ALREADY spent CENTURIES getting tortured as I said, AND hadn't come in contact with any being aside from a sword or knife to FLAY HIS SKIN with, when he was miraculously freed, THEN he was able to be all touchy-feely with the powers, so that's not some NEW revelation here at all!
After walking through the entire pits of HELL, wiping out every being with a fcking PULSE, he didnt end up with a few dozen MORE abilities taken from all these Lord Demons like the first idiot he decapitated by hand?
OH and he couldn't teleport OR conjure a portal from Hell, NOBODY could without risking DEATH...yet MCs shadow threw him into one with the EASE of breathing...can we say MORE continuity BUUUULLSHIIIIT?