The US is only eligible for NT-Level 6 according to the age grid.
Level 6 would practically collapse in the US if they ever let Level 5 into Worlds. Athletes would not push nearly as hard to obtain any Level 6 skills if they knew they could get to the Big Show without them. It’s bad enough we have NT-Level 6 (no offense to all the athletes who truly have no tumbling ability and enjoy this division); we’re seeing kids give up trying to progress their tumbling because they don’t need it (which means fewer tumbling classes/privates which means less $$ for gyms), and fewer kids seem to be filtering onto actual Level 6 teams. I’ve seen athletes from “non-tumbling” teams try out at other gyms with Level 5/6 tumbling skills that had previously been going to waste. It seems the biggest growth in Level 6 recently has come in NT divisions instead of actual Level 6 divisions which are mostly shrinking in participation— when it should be the other way around. I figure this may be a reason why NT remains an Intl division only and not a USASF division; it could possibly be a long-term threat to the existence of actual Level 6.
If Level 6 collapses, the sport will face a severe decline in popularity and then eventually die. (Level 6 teams tend to be what pique kids’ interest in the sport, and high level tumbling is the main thing differentiating Allstar from School/Rec). So no, the US can’t enter IASF Level 5 and hopefully never will be able to. I’m not sure why it’s needed for the rest of the world either; other parts of the world can now hold their own in Level 6 enough that we don’t need to dumb down the rules for whoever still is lagging behind. Chances are most of the countries lagging behind in Level 6 are also lagging behind in Level 5, and will still be lagging behind no matter what divisions we invent. And there’s zero incentive to ever get to Level 6 when they can stop at Level 5 and get the same exact competitive experience.
Worlds is the only “Best of the Best” competition that exists in cheer, so it should be for the highest level only, like any other sport’s most prestigious championship. (I’d rename Level 7 something entirely different, like “collegiate style-all star” or something; Level 6 is where the best of the best are).
Many sports have events with combined, individual, and unique skills as divisions in the Olympics (skiing, skating, swimming, cycling, equestrian,..) When it comes to skills/technique, those in dance and gymnastics have used the "dumbed down" argument against cheer for years.
Those who don't enjoy tumbling, can't afford it, lack resources, block, have chronic pain/injury, eventually quit or level off. Stunt, core, and stretch classes are expanding in gyms. What won't change, those who enjoy tumbling, and can afford it, will continue to tumble.
In 2016, privates, medical bills, and PT were more than half of our total cheer and travel expenses. There's nothing "dumb" about providing more cost effective, high level options in a sport. There's, also, nothing "dumb" about combining and sharing expenses at a large event with other divisions of a sport or other sports you may or may not feel deserve to be there. This is a parent paid for sport, how much more do you think parents can pay by making it more elite?