If you spend this much time, for three dozen views (which is not uncommon for videos further down -- and a view doesn't necessarily mean a person watched it all the way through), you've probably wasted a lot of time.
I don't know what the solution here is, and I'm not faulting anyone (I don't think anyone expected 1200 submissions), but the amount of dissipated effort makes me sad.
I almost made an explainer for the contest, and I'm glad I didn't. I think I would have made a good one, but I think for the expected number of views, I'm better off tutoring people 1:1.