[lloeki]

> The system manages flight information like crew scheduling, weight-and-balance calculations, and aircraft movement logs

You wouldn't want to fly an airplane whose weight and balance has been miscalculated (or maybe properly calculated but can't vet if it has)

https://en.wikipedia.org/wiki/Cubana_de_Aviación_Flight_0972

https://en.wikipedia.org/wiki/Air_Midwest_Flight_5481

[SoftTalker]

Even if the weight balance and loading are OK, it might be because other flights at the destination are being delayed at their gates and there won't be any gate for the aircraft when it arrives.

[kqr]

By the time they have pushed out the weights are already accounted for. It's part of the checklists that come before taxiing.