God I hate the "True fans" belief. What does it take to be a "True fan?" Do I have to drink the Kool-Aid and believe my team can do no wrong? Am I a False-fan just because I'm discouraged with my team's power running game?
As for your question, hopefully neither. Coaches, at least the good ones, don't call their plays based off how the audience will react. The booing didn't hurt, it didn't help, it just showed the fans' displeasure. Should the fans have cheered? Should they have given the proverbial, "Awww...that's okay. You're trying. Here's your participation trophy," kind of response? The result of the play warranted boos, just as the result of almost every other play warranted cheers.
I guess what bothers me is when people criticize fans for booing.