You are missing his point. The sport is indeed in it's infancy. It's not about "techniques", we are talking about countries. Only a few countries have serious MMA gyms. I'm from Argentina, the fourth biggest city in the country. No MMA gyms here. There are many boxing gyms though. I'm sure is the same for a lot of other countries.
No it's not.
It's not about techniques...? Okay, then is it about the athletic talent pool? The meta? Popularity? Money?
I don't care about money or popularity necessarily, but the UFC is obviously legitimate in those two areas despite all the fighter pay stuff. What matters is technique, meta, talent pool.
Clearly the training, skills, talent pool, meta --- have all increased dramatically since 1993-2000. Now can you seriously tell me that they've increased dramatically from 2015-2020 present day? No they haven't. There have been colossal leaps in the sport and they mainly occurred between 1993-2009 roughly in different increments.
As to your situation...there's little to no relevance there. You have no MMA gyms in the 4th biggest city in Argentina. Okay. Your country cares about soccer and that's it, everything else is niche. I'm generalizing and I'm not expert but I'm pretty close enough to right there. Are there tons of Football (NFL), NHL (hockey), NBA (basketball), MLB (baseball) facilities and stadiums/fields there? Are tons of people playing that in Argentina? No they aren't.
Argentina in this case is sort of a strawman. It has no bearing or reflection upon the sport of MMA (generally) just as it obviously doesn't for the NFL or NHL, or really for basketball or baseball (outside of few guys like Manu Ginobilli for ex)
No offense but Argentina is next to irrelevant anyway. It's not like every country in the world is going to be a powerhouse and produce athletes for each specific sport. The only country that does that is the US basically, and they struggle for soccer/futbol and still have tons of imports by default in other sports.