Is having kids learn to read and write bullshit because text to speech and speech recognition software exist? The point of school work isn't the output, it's learning.
One of my friends once submitted an essay where the introduction and the conclusions were coherent, but all the text in the middle was just unrelated garbage. It's an extreme case, but in many cases if the extremes and the subtitles are fine, the quality of the middle is not so important.
(BTW, it's "poring" not "pouring".)
I wonder how easy it is now for Western high school teachers to outsource things like lesson planning or grading tests to lower-cost countries? Startup idea: build a marketplace like that. There has to be a market for it.