No, the answer is to understand the installation instructions, and trial fit the trim if you aren't familiar with the thing prior to determining where to place the rough-in valve. This is something a pro learns early on, and a DIY'er may have to learn the hard way. Depending on your wall finish - tile, fiberglass, solid-surface, etc., the depth will differ. From the manufacturer's perspective, it the trim fits, it is acceptable. Personally, I don't like it sticking out at the maximum, but it's not 'wrong', as it is fully functional.