Ideas
In the spots you have posted in pictures, those are spawn areas for vehicles.
The measure was added because of griefers who would block it just because they want to ruin other peoples game, or players who would camp it, and use the spawn block mechanic to ensure they took the vehicle for themselves.
Was it a good solution? ... eh. Would it really have been so hard to simply create a volume, and when the game would spawn a vehicle and check inside the volume, and if the place it would spawn is blocked, try another spot in the volume?
There ARE spots in the game though that do not have vehicles spawns but you can still end up out of bounds.
Oh, but a bonus, all weapon emplacements are "vehicles" in the game too. So if those get destroyed, the location they were at becomes a kill zone until the emplacement returns.
They can get this done in secret, but can't openly place these kill zone volumes in places exploiters get to to gain an unfair advantage.
Painknight Ah that explains why it was happening to me on B flag of Cairo Bazaar Breakthrough in the final sector. There was a destroyed MG in the spot it was happening in.