I don't think that this statement accurately represents what happened. To me it seems that Paizo correctly understood wizard's request, informed their customers and orderly removed all the files after a short grace period. And made a killing in the process.
I don't know the exact timing involved -- when WotC told the vendors whatever -- so I can't really say how correctly anyone understood anyone else. I was merely offering an alternative interpretation of the (few) facts that are known.
I do know that the email I got from Paizo was timestamped 8:24pm Monday, which would have left 3.5 hours for me to buy new stuff, and left 15.5 hours to download old stuff. However, I had signed off the 'net by then, so I didn't see the email until I was at work the next day -- where I can't access Paizo's website. So, for me, there was no effective period of notice from either vendor.
The quote from Wieck on the ENWorld news page says they were informed sometime Monday; it seems like the total time given was at best 24 hours, which isn't very long to send notices to people, people to get said notices, read them, and act on them.
Compare with the end of Pelgrane Press's the Dying Earth RPG -- first, notice was given six months ago, apparently; I got an email a week or two ago from a couple of PDF vendors, mentioning that the DERPG PDFs would be going away soon -- several days in advance of the date. And then the expiration date was extended an extra month. Plenty of time for fans or just the curious to pick stuff up.
Granted, if WotC's purpose was anti-piracy, weeks of notice might not have suited that purpose; but 5 days or a week or so would have been better than <24 hours, and ought to have been less prone to "break the Interwebs in half".
(Well, probably not; I suspect anything mildly controversial that WotC does at this point will trigger loud paroxysms. But at least WotC wouldn't have seemed to me to have fumbled the PR ball. And it's really all about me, right?
)