In short, I don't personally enjoy the WGI circuit shows. I'd much rather spend a Saturday watching the local symphony orchestra or university wind ensemble than going to a gym to watch a WGI competition. No hate against it, just don't like the genre. Some people geek out binge watching DCI/WGI on YouTube, I geek out by binge watching orchestras and wind bands (and chamber groups of all kinds).
I'd much rather prioritize my personal time teaching concert band and chamber music than doing even more marching band. I personally enjoy it more and the think that it's artistically more fulfilling (again, for me personally) than marching winds would be.
No hate to the people that like that, my personal priorities and interests just don't align with WGI/indoor winds.