The risk is that if the car has gone back to the team they could have changed something (intentionally or unintentionally), this is why cars are not released to the team if they are being scrutinized in this way.

It’s more critical with things like fuel levels but its the reason they didn’t.l as teams can’t start packing down properly till the cars are made ready for transport and they can’t do that if they held by the FIA

However on a personal level I would have liked at least one car per team checked.