Does the Rubber Seal Around the Front Headlights Stretch?

I inspected the area around passenger side headlight assembly unit. This is what I found:

1. I noticed that the part of the bumper which goes up underneath the hood where the hood closes on it on the passenger side has a few millimeters more of space between the distance from the top of the bumper and the hood. The driver's side has less distance between the top of the bumper where the hood closes on it and the hood. The location of the space which I am talking about here is the "angled step" that is exposed when the hood is clompletely shut over the bumper. The hood shuts and seals properly over the top of the bumper. The only space which exists that I am trying to describe here is on the top part of the bumper that angles upwards towards the hood. There "is" supposed to be some space in this area between the hood and the top of the bumper, but there is a little bit more space on the passenger side in this location than there is on the driver's side on my Mustang.

2. I also noticed that the passenger side headlight assembly unit has a few millimeters more of space than the driver's side headlight assembly unit at the location between the headlight unit and the part of the bumper which goes upwards that meets with the hood.

When my car got hit, the passenger side of the bumper where the bumper goes upwards and meets the hood was pushed in a few millimeters. The bodyshop owner had to straighten it out. I believe that he pulled the piston on the bumper's shock absorber to do the fix and to straighten it out.

I am getting the feeling that the gap is being caused from the bumper's piston shock absorber on the passenger side. Maybe when the bodyshop owner pulled on the bumper to straighten it out, the piston was pulled outwards a few millimeters too far "OR" the piston wasn't pulled outwards far enough, therefore causing the gap when he put the headlight assembly unit back on the car. The bodyshop owner told me that he measured everything in order to make sure that the bumper was straight when he pulled it outwards. He said that everything was measured accurately before and after he pulled the bumper outwards and that all distances were even.

Do you think that the passenger side bumper piston was pushed out too far or NOT pushed out too far during the repairs causing the gap? As far as I can see, the bumper is on correctly and it is not crooked anywhere. The only place where I see any difference in spacing is ONLY in the area where the top of the bumper meets with the hood on the passenger side. And it's very very hard to tell that there is a difference in the distance between the top of the bumper and the hood unless you really look at that area very closely. You need to be looking ONLY at the exact spot which I am describing here where the top of the bumper meets with the hood from bending down and looking at it ONLY from the side of the car to notice this. And you notice this only at the spot where ONLY the top part of the bumper which meets with the hood.

Do you think that the bumper's piston settled outwards too much or outwards too much when the bodyshop tried to pull it to straighten it out? Do you think that the piston is too far out or not far out enough to cause the gap between the headlight unit and the front pointed part of the front fender?
Does this all make sense?