Well, technically, molding and design are two different things 😉 But yeah, they could have redesigned it for shrinkage. They probably never thought it was that big of a problem to worry about redesigning it, and spending the money to machine new molds I'm guessing. Seeing as that is probably...
Likely not so much of a molding issue as it is just inherent in the design that when that part comes out of the mold it collapses a bit in that direction. With that, I would think pressing the bearing in would spring the part back into its molded position. You could verify this by measuring...