This is a very old exploit... as IceFire said it. People that are now so taken by surprise are funny

.
The solutions are:
Fly with grown ups
Take altitude inside your territory before you take the "unknown/unpredicted" route
DON'T SWITCH TO GUNNERS or BOMBARDIER till last moments before bombing or when attacked
I am still curious how a mod is plugging the hole.
maybe a mod or patch will plug another hole... trimming in black-out. There is a plug by Maddox to it (the delay trim) now but coupled with reversal bug in G940 HOTAS it is a really pain in the back.