DETROIT — Erik Spoelstra called timeout. He did not have one. His team did not have one. That is how the Miami Heat lost Tuesday night to the Detroit Pistons at Little Caesars Arena. So despite Tyler Herro’s 40 points, despite a fourth-quarter rally, despite a go-ahead basket with 1.8 seconds to play, this 123-121 overtime loss will be remembered for none of that. It will be the game the Heat lost when they first allowed a tying, wide-open dunk with 1.1 seconds to play .