Honestly? I would prefer this if everyone gets called evenly. Makes not just wins but accomplishments and skills much more meaningful. It won't happen.
XYZ people will argue such harsh scoring will cause skaters to backpedal and slow the quad/TES revolution. XYZ people just don't want it for whatever reason (like it'll take away the entertaining factor for whatever reason). XYZ people are against harsh scoring in general because it won't be implemented across the board for all skaters. (In the present, how many times already during a skate have we seen an obviously questionable jump be marked for review, we see the slow motion on our own screen after, and it not get called for what it was? For flutz, lips, URs, too much PR, etc.) [Insert your reason here.]
If everyone would get called evenly then I would be in favor of it, but given the ISU history I don't have faith that would happen.
My concern that would be against a slow-motion analysis done of take-offs is how much time would it add to pull a slow-motion and review the jumps of skaters?