Knowing what's at stake here, Cedric can't be expected to just ignore everything and leave it up to them.
Sure, he didn't want to be directly involved since he was protecting his identity but at the very least, he could watch as the operation occurred.
And wouldn't you know it, paying attention paid off...
He saw how the seemingly smooth operation had gone to hell because of one small mishap.
The root cause of everything came from one simple thing. And that's due to the squad, whose task was to secure and guard the Control Center, removing their hoods after taking down the cultists they met there.
See, the hooded cloaks that they're wearing aren't just any ordinary equipment, they are enchanted to lower their presence and visibility. It also masks their scents and obscures their facial features.