I know several folks who would love something like this with a different set of gestures and end-results. Especially smaller operations who have switched from in-person to live during the pandemic. The bigger shops have space for a dedicated operator, but the smaller ones are just the instructors and their students in a zoom call.
I think the key is going to be in arriving at the right set of gestures for the right audience. e.g. yoga instructores are probably looking for ways to minimize/maximize certain screens. Aerobics instructors are looking to be able to mute and unmute and send directed feedback. Both types are often struggling to figure out lighting and how to position their cameras. On all sides I think something simple like capturing the entire class clapping along is hard to do. I think something like this would be perfect for that market.