ALTCRZ*, one would best spend time answering the questions instead of stirring the pot.
Air_Dream, not knowing the details of all the specific flights, these things happen. It has been quite an unusually busy week for GF...diversions (due to Wx), aircraft going tech (one of a thousand reasons), all resulting in crew being pulled off one flight to work another, etc. "Ya gotta do what ya gotta do!" and they did it.
Better to delay down here than being up there wishing you were down here...
Like I said, these things do happen though.
Cheers,
~ R.D.