I actually think George did the best thing he was capable of with Dot: put her front and center of his painting. That is the only way he knew how to relate and from George, it was the most meaningful thing he could possibly do for her.
Dot herself, in a bit of a contradicting way, realized the truth about George as well. Though she taunts him to say anything he's feeling, she realizes one thing: he's "complete." He just needed his creation, he didn't need her to be complete. He couldn't have been complete with her but without the art.
I don't think anyone glorifies George for choosing art over Dot, they applaud the art of creation. Imagine if he chose Dot instead of his art: he never would have been complete, they would never be happy together, probably eventually break up, and then there wouldn't be a relationship or a painting.
It's hard to find him complete unsympathetic with the way he describes his creation...making things where there never were, seeing beauty in everything, "revising the world."
"If there was a Mount Rushmore for Broadway scores, "West Side Story" would be front and center. It snaps, it crackles it pops! It surges with a roar, its energy and sheer life undiminished by the years" - NYPost reviewer Elisabeth Vincentelli