The real reason? Tsuruno Takeshi's been having a surge of popularity (that sadly seems to be dying) in the last few years. He was a member of a band formed by the host of a variety quiz show. It was a three member band called Shuchishin and basically formed because its members were the most popular guests on the show because they were, bluntly, the dumbest, and that was somehow endearing to people. That band got popular, did their thing for about a year, broke up, and then they've been having decent solo careers since then.
I've always been really impressed that, even when he's been super popular, he's been willing to go back to tokusatsu. ...though it's basically his only major role ever (one of his bandmates once said "You know, I never really thought of you as an actor, you don't act much!" because...well, he doesn't)
In show reason? That black hole probably sent him way the hell across the other side of existence to the Shouwaverse and he's been traveling around trying to find his way back home.