It is asinine.
He can't even pretend to speak extemporaneously. It's increasingly bizarre (as we move temporally farther away every day from election night) to keep casting back to the baseline achievement of every president: win the election.
I see both sides here, but I admit that my thoughts are purely assumptions and conjecture. The answer on its' face is a total deflection and fails to address any part of the question(s). Depending on your perspective, it can indeed be both asinine and bordering on retarded, assuming that's his honest response.
My assumption is also that he fully understood every aspect of the question and it wasn't:
Mr. President, what is 2+2?
Trump: ORANGE!!!
I think in his mind, he took it as another shot by a reporter and he had two choices, either attack the guy and the media outlet he works for, (Which he has done numerous times in the past) or go 100% "Coach Speak".
Mr. President, what about the rise in anti-Semetic attacks etc.?
Trump: We're just focused on the game this weekend. Trying to get better. One game at a time. Next question.