Well, just the way YouTube works is a very laissez-faire approach, mostly automated but also very reliant on viewers to flag videos for their attention. So, my guess is, either the automation saw multiple keywords linking their novel concept to COVID-19 conspiracy theories and made the gross generalization that it was misinformation, -or- it was flagged by multiple viewers that assumed they’ve never heard of viruses being treated with this approach before, therefore it must be a crackpot idea, therefore it must be removed. And YouTube faithfully complied. And people rightfully got angry. And YouTube fixed their mistake. shrug You try curating 300 hours of video/minute and come up with a better solution that never gets it wrong!
It’s a giant NothingBurger if you ask me. The drama, and the idea, both. Regarding the tech/idea: doubt it works but if it does, great. 