He was disillusioned with theater in New York (and let's face it, New York is the center of American theater), by which I can only assume that he meant Broadway, being that off-Broadway is where much of the risky, smart, artistic stuff is happening these days, so he went to LA to try something
other than theater -- not LA theater. People get upset when LA theater gets knocked because there IS some good stuff out there, so I won't say there's nothing good, but you don't leave New York's theater scene for Los Angeles' unless it's for something special, a la Mano Felciano and Sunday in the Park... for example. If you're disillusioned with NYC, you don't go there for better theater.
A work of art is an invitation to love.