It was probably the after effects of the October 19 solar flares.
…and shoddy work. No one else lost a satellite that day.
A toasted chip or board I could understand. Explosions not as much.
I can see a fried chip or board or some mechanical failure ... but explosion?
That I cannot explain.
CanIPlay2’s guesses sound plausible. A fuel tank could have ignited. It still takes a monumental screw up to make that possible. Starlink lost another batch of satellites during the storm back in May and I didn’t read about any of them exploding.
Unexpected solar flair messed them up.
They all burned down on planned reentry.