And yet you see that feature rarely used.
Because in the end it's much less efficient than upping a heavy F4U-1D jabo. The TBM has to climb to alt first, then settle it's speed and calibrate. The F4U-1D can put the about the same bang on it's target much faster (and has much more combat value after the drop),
And the TBM's increased precision isn't worth that much more considering it's small payload. Under most circumstances, not much precision needed to kill a hangar or a few town buildings in the first place.
Of course, no precision is needed when they fly into the target. Any second of flying after ordnance release is a waste of time - you should ride the bombs into the target "Dr. Strangelove" style, or continue to strafe stuff until killed by acks.
Few fly the TBM because most have never heard of it and don't even know what it is. True, F4U is a better bomb truck with added value, but the TBM is not so bad. Not all planes are alike or should be. This is not an mmorpg that needs its classes balanced.
I hardly fly it because the SBD is even cooler.
It's not that no other plane can do this, it's just that they can never look as cool doing it:



That was cool

But not what I was referring to. Think what is the thing that only the TBM can do with rockets.