What else could they have been trying to do? From seeing the bug filed/fixed wrt the issue, it seems like the only unintentual part was that the popup appeared to quickly, it was showing up after 20ms instead of 20s or something like that
they could have been intending to insert the advert into other places, which wouldn't be quite as outrageous (though I happen dislike them inserting them anywhere, but some places are definitely worse than others).
