Probably, but it's a weird cultural thing in Japan where everyone acknowledges the Yakuza exists but it's a huge no-no to talk about them having their hands in "legit" business. They were all over pro wrestling and MMA in Japan in the 90s (you can see smartly dressed Yakuza folks in the front row at New Japan shows around that time often), and the embarrassment of being in debt to the mob was almost certainly the reason Arai took his life. So you most likely weren't going to get any of the Japanese folks to talk about it beyond what was already in the show.
Plus there really wouldn't be that much to say. FMW could maybe have kept going without Onita, but losing Hayabusa was too much of a blow to overcome when the creative wasn't really any good (and they told Onita to GFTO already). Not to mention ECW showed us the other possible timeline for FMW, that kind of wrestling just has a short shelf life due to the toll it takes on the wrestlers as well as getting to the point where all the ultraviolence wasn't providing the shock factor needed to continue drawing.