I'm just at a loss. The poll told you how many voters it thought would appear, based on factors including internal modelling and the enthusiasm quesiton. And your argument is that you should throw the aggregate data out based on that one number, that they already included? That's insane; it's quite literally cherry picking.
And, of course, it's just flat wrong. That you would defend this behavior is just beyond me. It was a mistake, it wasn't ever a reasonable interpretation of the data, and plenty of smart people said so at the time.
The enthusiasm is a measure among the reported data. Not among the survey sample. The data was culled for likely voters, then the enthusiasm spread was among those that survived the cut. At the bottom of each page it says the results are all from the weighted sample.
The concept here is that "likely" is a continuum, and the Republicans had an advantage at the extreme upper end of it.
EDIT- Adding a note and then moving on from this. I understand you're saying the enthusiasm is baked into the final preference percentages, but that's not the case.
And, of course, it's just flat wrong. That you would defend this behavior is just beyond me. It was a mistake, it wasn't ever a reasonable interpretation of the data, and plenty of smart people said so at the time.