More or less. I'm suggesting a mechanism for why something like the Dunning Kruger effect might occur and where we are likely to see it occurring.

That's a very interesting way of explaining it from a perspective I hadn't considered.

In the paper, ability is positively correlated with perceived ability. So we would need some other effect to explain people saying they got worse over time, or people's perceived ability decreasing over a time period in which their ability improved.