My guess is that the majority of complaints Amazon gets about hyphenation in ebooks are due to poorly converted ebooks, where line-breaking hyphens from a print-formatted source file have accidentally made their way into the ebook. Amazon support is generally not set up spend more than 5 seconds looking at your email, so I surmise that they've filed it into the "yeah fix your ebook hyphens" category and are not reading carefully enough to realize that they've misfiled it.
Or, in the time-constrained-support-worker model, a high profile release just means that they trust the publisher's quality control, and won't flag it for review as quickly as self-published content (which is highly variable in quality).
It's a poor QC process, not a stylistic or editorial review.
Nice combattive metaphors, but this is just too silly to engage with.
EDIT: Downvotes, but I'm sorry, I don't WANT to explain how it makes sense to expend more time and money on customers and suppliers that are a _million_ times more valuable to one's business.
