Is there any good reason to omit a center line limber hole in a frame
between the engine room and forward bilges of a 36 ft double cabin boat?

My boat has limber holes in all the frames except this one and the same is
true of other boats of the same model. If forward bilge water gets to be 12
inches deep it will spill over the frame anyway so I don't see any real
safety reason. And, engine room bilge water can easily flow aft to the
bilge below the aft cabin.

What am I missing. I'd like to drill this limber hole but don't want to
make a mistake. BTW, there IS a separate bilge pump in the forward bilge
area.

TIA
Jim