It's important to note that not all models are the same, not even each model year. As previous identified up until 16' the explorer TPMS system did not read individual tire pressures. This will be the last time I say that I physically just dealt with a similar issue. It's not an assumption or impression. The dealer could very likely be doing it, it takes all of a minute and no-one would be the wiser sitting in the waiting area.
If it wasn't a waste of my time Id go throw my winter wheels on to show you that they are not automatically recognized. (on this particular model and year)