I am apparently in a significant minority, but I thought the projections actually detracted from HEA in places. Not because they weren't well done, but because you can't really watch the projections and also watch the fireworks at the same time. It's not an issue if the projections are basically just background, but in HEA they often had actual characters moment etc. happening via projections while fireworks were also going off.
I'd have preferred projections interspersed with fireworks instead of having everything happening all at once. For locals who see the show regularly it doesn't really matter, but most Disney guests aren't going to see the show more than once or twice over several years.