I took away from her study that, as far as she could extrapolate from the available data on climate/temperature cycles going back 2 million years, that we were pretty much smack at the point of the two curves one would expect during this point in time
Not quite. We reached the peak of the current interglacial about 8000 years ago. That peak is the result of Milankovitch cycles and the carbon, albedo, and other feedbacks - just as the peaks that came before. Temperatures have been falling slowly since then until the last 150 years when we increased atmospheric CO2 by about 70% by burning fossil fuels. Temperatures have risen along with the recent CO2 increase, just as you'd expect. The question she's trying to answer is, if we stopped releasing CO2 today, how much more warming would we observe just due to the CO2 we've already released. She uses the CO2 and temperature correlation over the previous glacial/interglacial periods to estimate the impact of CO2 on temperatures.
Gavin Schmidt shows why this is flawed and, given our current circumstances, likely to overestimate the impact. Here is a snippet: "In the previous post, I outlined how the combination of carbon cycle feedbacks to the Milankovitch forcing and the climate system response to CO2 gives rise to this correlation and that – by itself – it can’t be used to define the latter term. Furthermore, because the regression is being defined over ice age cycles where the biggest changes are related to the (now disappeared) North American and Fenno-Scandanavian ice sheets, the regression might well be much less for situations where only Greenland and West Antarctica are 'in play'."