All the evidence is available
I suppose you read red tops, Hello magazine and watch soaps every night. It's in the newspaper and on TV so it must be true...
Tech problems that were or weren't being fixed, remote stands, gates, delay for tugs, a non-functioning APU, a slot, 37 degrees, 50 degrees, less than 2 hours, more than 3 hours on the tarmac....
We don't know any facts; just allegations.