Give us the precision bomb sight and formations, and I can almost guarantee you will hear cries/whines of "no fighter hangers" a lot more. With a pair of B17s with the precision sight at 15-20k, it was nothing to close a small field.
It's not that tough with a single formation and calibration now, it's just most people are looking for the quick, immediate gratification of a low alt run. Some people still bomb from altitude as if they still have the precision sight anyway. You can see when they drop in three bomb sticks. Sometimes it works, other times it doesn't... that's the fun/frustation of calibrating. I increased the number in my salvo just to handle the spread.
Take away formations, you lose a lot of the pucker factor when attacking buffs. When flying a formation, I honestly don't mind being attacked by a decent pilot who uses slashing attacks from all angles. On the same lines, I LOVE the guy who flys up my six all by himself as I watch the distance countdown.
I've said it before... bomb drop should be from a level platform (high or low) unless the plane was designed for dive bombing. If you come in low, you should encounter a defensive perimeter which would basically shred a slow moving formation BUT the same defense would have trouble against faster moving craft. These defenses would basically have to be cleared or avoided to allow for a low alt bomber attack. Even if the ack is tuned down to not do a lot of damage, it would alert you of the low alt raid a little sooner.