I've been asking the same thing since the title was released.
Not only with mines being placed a fair distance into HQ, but the ongoing matchmaking issues causing rapid fire rounds, where players literally camp on the edges of the HQ, shooting aircraft or vehicles before they've even taken off.
In BFV or BF1 it took longer to select and place mines, and you were killed quicker if you went into enemy territory.
Now you can get a good amount of time in there, which is a long enough to basically sabotage everything in sight.