I have a pretty unique perspective on this situation, since I've actually trained with Ishii (as well as other international level judokas) before in grappling, and I see Ronda train at my gym all the time.
1) You're all getting trolled by Ronda. If you follow her interviews closely you would know she has the mentality that creating controversy sells fights. If people love to see you win, or people love to see you lose, as long as they want to see you, then you make money.
2)She has a very extensive grappling background and if anything, trying to promote judo as being "tougher" is just a way for her to deflect attention away from that. Just because you don't win 10 medals at Naga or adcc or whatever, doesn't mean you aren't training and at a really high level. Take for example, John Donaher, you would never know his name if you only followed competition results, but he is apparently so skilled and experienced that guys like GSP seek him out for instruction.
3)NFL players haven't done so hot in MMA. Granted the NFL players who made the transition weren't exactly the cream of the crop, but its a retarded comparison. Analogously, World strongman competitors are not necessarily superior athletes compared to top motorcycle racers. It's two completely different sports, two completely different skillsets. Also, if you underestimate how hard professional FIGHTERS who FIGHT for a living train, in a sport where its the opponents JOB TO INJURE YOU, thinking other sports training is harder, you are seriously misguided. Let's be honest, MMA is a pretty brutal,extreme, and violent sport. Many of the best fighters have a little bit of a screw loose that manifests itself in undertaking extreme training measures, beyond the norm in other professional sports. They don't train to "play a game", they train for "going to war". Shit dude, Lyoto drinks his own piss every morning just as a way to start his day. Don't underestimate how hard MMA training is.
4) Talent pool. Actually NFL has a way smaller "talent pool" than MMA. You can't have a realistic goal of playing in the NFL unless you are American and at least 200lbs or so (for the most part). MMA is contested at the top levels in weight classes as low as 135 lbs now, and theres no denying its a true international sport.
5) Olympic/International level Judoka's are not generally on a higher level than top MMA fighters/ grapplers, especially not physically. Actually, the thought of it gives me the lulz. Again, having trained with both groups I can confidently state this. Not that there arent some exceptions, for example comparing Teddy Riner to Roy Nelson or something . But the idea that success in Olympic/International judo means that you are gonna walk through top mma fighters on athleticism alone, lol it really is hilarious. I don't want to get into too much detail, because I'm not out to badmouth anyone. FWIW, the elite judokas I've trained with have been sick athletes, very strong, some with really crazy endurance to go round after round HARD, etc. But then again, I could say the same thing about alot of the regulars at my gym, definitely all of the pros, and I'm pretty sure its the same way for professional fighters across all the different gyms.
"I have to go on record and say that the MMA fighters are the greatest athletes in the world, mentally and physically." -Shaquille O'Neal on INSIDE MMA.
Pretty sure he might have seen a few athletes in his days...