Correct. I mean he is actually a good singer, the song is really catchy, & importantly, he sings with a lot of passion, but those are mostly just reinforcement factors that made the recipe just right so when his message hit everyone in the feels it was able to break through and cause a storm.
The reason is the message was delivered in a way you can *feel* it. He said what an incredible number of people have been thinking for a long time.