I undestand that knowing Finale/Sibelius/Lilypond/etc doesn't make you a professional engraver any more than knowing how to use Photoshop/Illustrator makes you a graphic designer.
I even get that people who feel comfortable with the previous mentioned applications can feel as though they're capable of doing music typesetting professionally, or at least as a pro-am, perhaps freelance. I would honestly count myself in this category. I know enough to know that I shouldn't do it professionally for certain, but I also know that I'm more aware than the average bear.
What I don't understand is how well-known publishing houses professionally release music that was either not engraved by someone who actually knows what they're doing or… I don't know what else.
I get that there is music that just needs to sell; that publishers are playing a numbers game trying to flood the market with sheet music with certain titles. I understand. I really do. But I feel like there appears to be a lack of need for the quality of the engraving to be at a higher quality than is being released.
I think of the Kindle. We as a species have figured out how to make really high quality typesetting of text. However, that hasn't translated into the mobile realm yet. The typesetting on the Kindle is rough. It's an obvious step backwards in quality. It isn't a digital vs analogue problem. Tex was released in the 70s, and InDesign is capable, so it's not like quality digital is outside our reach. It's simply that the Kindle's ethos is one where it's good enough. The people—the masses—don't actually care.
Are we getting to that mindset, where publishers think software output is good enough? That maintaining a standard that was reached in previous generations of music engraving isn't actually necessary like we think it is? Great engravers that are capable of high quality output are absolutely out there; there's plenty of proof of that from the members of this forum.

Am I imagining an issue that isn't actually there? Is this like the difference between Apple customers and Apple themselves in how each group feels about their software QA as of late, where I'm just complaining but actually things are just fine; nothing to see here; move along…?