Honestly, it's not crazy to see MLS growing very rapidly within the next two to three decades. The NFL is going to have a serious problem concerning head injuries and there are some who believe that the league will not exist at some point because of this problem. The NFL can't get safer despite all the improvements to the equipment, rules, etc. The fans, tv, etc. will want something to replace it. With the growing interest in European football and more so the World Cup as the USMNT improves and goes deeper and hopefully eventually wins, people may gravitate more to the sport. And with a similar schedule of football which is soccer, one a week games, typically on the weekend, it will grab that football audience. Consider also demographic changes in the country with the growing Spanish speaking population and MLS in 2050 may be the biggest sports in league in America. It's not crazy. It's sports.
funny you mention this, recently i have been seeing quite a few articles ( the NY times, and i forget what otehr site) regarding head injuries and concussions in soccer and saying how basically this sport is almost equally as dangerous as football because they dont wear gear and mention cases of teens who have sadly passed away due to constant concussions.
so not sure if now that they see more soccer they want to bring it bad press as well to prevent its popularity from growing?