The roads in V6 are wider, the amount of approaches to most properties is typically a lot more surface area (source: vibes.) A variable in the equation has changed and made it a lot less enjoyable / easy to hold a perimeter. I think this is the way to offset that somewhat.
It's not...
Giving players more freedoms to build nice looking or actually useful permieters would be cool i think. I usually carry a few concrete barricades with me on duty so I can reinforce my perimeters, you can even perform a "parry" by dropping it just before someone is about to run you over and...
You're so right king gunfights in perp will literally always suck and it's fine because that's not meant to be the main attraction to the server, merely a method by which people roleplay with each other.
A better check would be on doors to see if there has been a recent crowbarring attempt.
Naturally, lock picks would not be covered as they do not cause visible damage to a lock.