There's a big difference between telling a user "don't try to service your TV yourself, there are parts in there that can kill you, and you don't know which ones they are", and telling professional DBAs, "we can't be bothered to tell you how that works".

You know the TV ads and such that have the warning on them, "Professional driver on closed course"? Well, we are the professional drivers. And the pro mechanic team. And many of us are highly trained engineers on the exact subject at hand.

So I don't see it as comparable to "no user servicable parts".