Or a simple way to solve this problem would be to send a scout ahead and not just jump in your entire fleet.
Jump the scout in, see 1000 mines, scout dies from enemy strikecraft/defenses/ships/mines.
Send scouts in with your fleet, ships decide to go bombard the planet or attack the Starbase despite being able to see the mines and despite orders to hold position, fleet gets destroyed.
Send scouts in with your fleet, game turns into a slideshow, all the ships won't even render due to hitting the memory cap.
Send scouts in with your fleet, somehow win, then spend the next 30 minutes manually clearing the minefield.
I've seen all of these happen. None of them are fun. Some of them are so unplayable that I'd call the game broken and demand a refund if the release version had the same problem. (One of the requirements of the Gamers Bill of Rights is that the game run with adequate performance, which it doesn't when mine spam starts, and my system is well above the requirements.)
I find it cute that you think "send a scout in" actually solves the problem. Have you been playing against the AI when it decides to attack with a fleet that's 50% mine layers?