Is it nescesary when the evidence is so clear? I mean who the fuck are a "catch" fighter anyway.
The mma scene is full of conflicting teams that really dont want to have nothing with eachother to do, not only the teams but also the "catch derived" organisations pancrase and shooto are mortal enemies. In this mess we have different gyms with different allegiances. Most of the grapplers in Japan in the early mma scene was "catch derived", they competed under a various amount of different styles "shooto", "shooto wrestling" "hybrid wrestling" etc etc. All of these have an obvious inclusion of catch wrestling for anyone that got an eye for what the art is about, obviously an indigenious mix of jjj and judo with catch and the prowrestling heritage as the dominating flavour. But no one of them really stands up and calls his style "Catch", some would for instance call themselves "hybrid wrestlers" but in the same breath trace their grappling lineage to Fujiwara and Gotch. But if we then have a situation where no one clearly stands up and raises their hands and says that they do "catch" how are I suposed to be able to pinpoint down an "active catchwrestler" who also have started to incorporate bjj in his training. I could say Yuki Nakai but he is not "active". He is however one of the largest (if not largest) legends of the shooto organisation and now he is propably the most prominent bjj authority in Japan as far as I know.
Its not realistic to narrow it down to the individual fighters in this case, but you have to look at the japanese fight scene as a whole and there it is obviously where we have gone from a time predating the ufc revolution and the bjj revolution where it was almost exclusively the "catch derived" various brands of grappling that dominated the scene, and from there there have been an obvious impact of the brassilian and western bjj based fighters wich obviously have set its mark on the japanese fightscene as a whole.
An random example is an article in the Swedish mag "fightermag" where they visited the fairly new deep gym. Its where Ryo Chonan and Imanari trains among others. Now Imanari should be imediately recognised as someone that fights in a style that is -clearly- catchderived with his insane focus on leglocks, perhaps not typical in every sense but its fucking Imanari we are talking about.

Anyway there most popular classes was bjj.
So what are we debating, that the Japanese fightscene as a whole and that means the majority of the individual fighters have much better guards today compared to earlynineties and that is in majority an effect of the brassilian and bjj invasion of the japanese fightscene. You dont agree with this?
...longer post than intended lol...