I wouldn’t call it a collapse, rather the roof fabric ripped. All the structural elements appear to remain intact. I can’t tell if the structural elements even yielded, but may have remained in the elastic region throughout the high strain rates.
Looking at the video, it sure appeared to me that the structure sagged causing the fabric to rib. In one video, you could see the center scoreboard sagging down before the snow poured onto the field.
Was it a heavy 'wet' snow up in MN?