Also, let's not forget what happened in 2016 when Hillary had a huge well-organized ground game, Trump had none, and Trump won anyway. Are we saying Trump was actually winning the battlegrounds by 3 points or so and Hillary's ground game actually closed the gap? That feels unlikely to me.
Disagree in Florida at least. GOP in 2016 was much more active on the ground vs Clinton. Like a lot of things HRC 2016 campaign it was more hype than action. Trump beat her with rallies, affiliated Republican groups organizing when his own organization was in disarray, social media (both legal and unethical/illegal stuff) and mindshare with the media networks who covered Trump's every word.