While your assessment is likely correct, glitches are glitches because they're unforeseen. The smallest possible factor or combination of factors could hit at just the right way or at just the right time and something that has never happened before could suddenly happen out of the blue.

Also, code can corrupt -- especially code that relies on the transmission of real time data.

It doesn't sound like this has happened in any fashion before, so that definitively would rule out the latter.

It couldn't be a server going down as that would have backups ready for something so important, as you said.

Honestly, whole thing is weird. "Glitch" just sounds like a cover story. It is plausible. But it also sounds like plausible deniability.