One of the comments on this Twitter thread argues the video "isn’t just advocating for more complete Ivermectin trials, he’s recommending its use based on a collection of low quality studies. That’s dangerous, and I don’t see how you can blame YouTube for deferring to the advice of the major health bodies on this matter."
Personally I'd never heard of Ivermectin, so I Googled it, and for what it's worth the top result that came up was an official page at FDA.gov headlined "Why You Should Not Use Ivermectin to Treat or Prevent COVID-19"
https://www.fda.gov/consumers/consumer-updates/why-you-shoul...