I wonder when they published it, though, and therefore whether it is a matter of reading skills or the rage above is somewhat justified.
This bit is peculiar, though — it was added the day before the quest went live, i.e. they discovered it via some kind of internal testing. The date probably refers to when they started ‘tracking’ it (quotation marks for irony, I know what bug tracking is) — this isn’t the first time they published it ‘retroactively’, as far as I remember.