Bonded screens make up a significant amount of body stiffness Nowdays.if that was true, cars whould be deformed and damaged if one wheel was on a bump in the road while another was in a dip.
When I was working in a South Africa VW/Audi dealership in the early eighties, slamming the bonnet on a MK1 Golf could result in the headlamp lens's falling out whilst slamming a door with the heater flaps closed could pop the front screen out. Quite often, if you had the car jacked up, you couldn’t open the door(or close it if it was already open when you jacked it up as the body shell twisted.