Looking at NY, you can see that it is even mostly red. The blue spots coincide EXACTLY with the cities, Buffalo, Rochester, Syracuse (and the res), Albany, NYC, and Watertown and Plattsburg in the North Country.
The other thing it doesn’t show is the counties/states where the votes were within one half of a percent - the totally split regions (such as my county). It seems pretty silly to call such a region red or blue in expectation of predicting how they think, act, or will vote in the future.