Edge of peg hole in 11458 too thin?

[Jaco van der Molen]

I was building this nice bookcase from a video I found from Tiago Catarino.

In real life LEGO 20482 (brown here) fits perfectly and the peg hole aligns:


But, in LDraw see illustrated here (20482 in light grey for better contrast) does not align with the peg hole


Isn't the edge of the peg hole of part 11458 too thin? Or is 20482 too thick?

I also have the feeling the edge on the side where the peg hole is, is a bit too thick. In real LEGO this is a minimal edge.