Not really. In a counterfactual world where the winner of the national popular vote became President, the candidates would have campaigned differently. So it's impossible to say what the alternate result would have been.
I'm not sure what that counterfactual has to do with anything here. It would be relevant if I were saying "clearly we should ignore the electoral college and hand the election to Hillary." I'm not. I'm saying Trump has a bit less of a mandate, losing the popular vote by a small margin, than he would have had if he'd won the popular vote by a small margin, and much less than if he'd won the popular vote by a huge margin. Yes, the numbers would have been different if popular vote had been the chief objective, but... so what?