No, it doesn't. Further evidence you don't know what you're talking about.
Why is it so important to think you can win BJJ tournaments without knowing any BJJ? No one would say something so asinine about any other sport. Wrestling and Judo are good to know, but every champion spends almost all their time on BJJ just as you'd expect.
A star football player who had no basketball experience might be able to go out and dominate pickup games on the strength of their athleticism alone, but as soon as they start competing against guys who are both athletic and practice baskteball they're going to get killed. It's no different here. If you want to take D1 wrestlers and put them in white belt divisions they probably will win, but who cares? By purple belt at the latest the winners of even local tournaments are guys who primarily train BJJ and are experts in that sport. For some reason it seems important to you to insist that BJJ isn't a real sport and that people from other sports can dominate in it with no experience, but reality simply doesn't bear that out.