I know it might not be the entire story, but at least some of it has to be that it's 100 degrees for half the season.
The average high in Austin in July and August is 95 and 97. It's 92 in June, so not that much better. Dallas is similar.
Like a 120 heat index when you add in humidity. For months at a time.
That is oppressive to sit outside. Is Precourt going to put a roof on his stadium?
I like going to Crew games, but there's absolutely no way I'd go in that kind of weather.