It would make an okay hospital tank...though I would not use a bowl for a hospital tank. The fish could jump out. I love how they mention betta's are jumpers but there is clearly no cover for the tank. "Yes they are jumpers so allow me to put it in this tank they can easily jump out of.
Did you notice that there are a lot of negative comments and that 16 out of 28 who rated it really disliked the video? There is hope for people out there yet. Hopefully with so many disliking it, they will take it down or rethink their instructional video and do more research on how to really care for a Betta.