Yes, I watched the game and it was bad defense overall with a spurt of good defense, which was predominantly off of the press (which was short lived and should have been used a bit more because it was really the only effective stretch of "defense" we put forth).
We got those 55 second half points predominantly off of very good shooting (50% FG, 60% 3PT, and 16 made free throws). Perhaps you should go back and rewatch the game, especially the second half and actually do some objective counting of how we scored those 55 points.