That clip is fairly low-res (at least for me). Here's the higher-quality source from Spaceflight Now: https://www.youtube.com/watch?v=1O90WZJALYc

the clip is wild. There's definitely anomalies originating from the bottom.

Then the spacecraft structure starts falling and tilting.

Then the explosion ripples up through the core and pops out the top.

Then the massive explosion occurs due to the complete loss of fuel integrity.

It looks like the bottom fell out, and then caused the pressure to ripple up through the structure causing complete structural failure. Wild.

The fish loved it: 0:29