Hogan had to put more effort into his matches in Japan, it would come off as a laughing stock to the Japanese audience if Hogan wrestled like he did in America. What you just saw was about the average technical skills a wrestler in NJPW had to have at that time in that video. And Hogan was probably trying his best just to keep up on a basic level. It doesn't matter if Hogan could do a drop toe hold, or a cross armbar-he still wasn't proficient in working a technical, or Puro type style. I wasn't terribly impressed by the video, as any other New Japan wrestler on the roster could have done what Hogan did right there. The real reason people think videos like this "prove" Hogan could wrestle is because, its a novelty for most people to know that Hogan could perform a headlock, and knew more than just a punch, kick and a legdrop. In reality, its nothing special at all.