Maybe there are a lot of baffles living in the oil sump that have fallen off.
I need to go through the box of used engine parts that the machinist gave me and see if there is a baffle in there!
But, maybe that is why they stopped putting them on the dipstick...
I'm not sure if it would fall into the sump anyway, as the stick goes through a small hole on it's way to the sump and there is a side passage for the oil...so no gaping hole down there...
Before I put the oil tube/dipstick on the engine I was attaching the oil filter, and sure enough, I dropped a blind nut and it went straight into the hole for the oil tube.....

.....thankfully it was resting on that casting and did not fall into the pan....!