I dunno: I can see why people think they're too prominent and/or make the plane look "boilerplated" in the drawing, but then from a practical point of view, it's more information, i.e. it's better for a modeller to know that they're there rather than not, and within the limits of resolution, there might be no option but to make them over-prominent.
I spotted a few other things in that drawing. I can't say that they're definately wrong (what do I know?) but they certainly caught my attention as odd.
1 +2 : It looks as though the innermost panel line on the wing extends across the root fairing. This looks odd: I'd have thought the faring would cover the wing, and even if it did have panel lines, would they really be in those positions?
3 : Does this panel line really stop dead in the middle of a panel? It might do, but again, it looks odd. There are multiple examples of this on similar panels on both wings.
4 : Should this parallellogram-shaped panel have a continuation of one of the normal panel lines cutting across it's tip? Again, there might be some reason to build it that way, but it leaps out.
EDIT : just read your reply and 3 & 4 make more sense if they're lines of rivets in the middle of panels rather than actual panel edges.
