Pretty disappointing when ANY chain comes out of the box with dull or inconsistent cutters.
I have not personally experienced these types of problems, but have read several posts, over the years, about chains with different angles on the R and L cutters, inconsistent depth gauge settings, etc. A big advantage of sharpening your own chain is that you can easily adjust or correct these things. I get that some guys will always want to put a final touch on the cutting edges, or change the angles slightly. But I think that a new chain should still come out of the box ready to cut.
Philbert