Personally while I agree with your analysis of Trump’s performance, surprisingly it does not appear others do.
First, as you say the CNN snap poll gave the nod to Clinton last night, but that was the only one. All the other snap polls had Trump as the winner some by impressive margins and of those decisive margins, only one was from a source that would be biased towards Trump (Drudge). The others were from MSM sources, and still had margins of 10, 15 even one had 20%, IIRC. An illustrative graphic of all those polls was posted earlier today but I don’t have it or I’d post it. I could find it if required.
Snap polls aren’t particularly useful for much except to show enthusiasm for a candidate however unless one posits the existence of Trump bots flooding the online polls with yes votes (an unlikely scenario) the results of those polls were quite dramatic. And surprising, again given your objective analysis which I believe to be correct.
Also there is the one post-debate poll, conducted more rigorously than a simple online poll, out today that also shows Trump resonated with the voters. See here: https://www.scribd.com/mobile/document/325456792/National-Poll-September-26-2016-Post-Debate-Poll
In question after question Trump scored favorably, save a few questions, and outside the margin of error.
I agree with your analysis; after watching the debate I went to bed disappointed with his performance. But again, surprisingly, it does not seem that others share our opinion of his debate. For whatever reason it seems Clinton did indeed tank, even though she had all the “right” answers and appeared more in control of the situation.
Apparently people really are fed up with the polished politician. And are willing to give Trump a lot of latitude for this reason.
I have been wrong enough in my reaction to Trump’s performance during the primaries 2 recommend to all including myself that a measure of humility is appropriate.