The auto complete quandary comes from ambiguity of language. The phrase "Auto-complete is broken" is ambiguous in the article encompassing at least two defintions.

I know _that_ auto-complete is broken (I see it, the test fails)

but

I do _not_ know _why_ auto-complete is broken (some other dude did it)

But I still think it's very interesting to talk about if for no other reason than that it clarifies terms and usage.