They probably got a nasty response last time and are going to quietly pull the plug this time around and hope no one notices.
To slightly add to that, the confirmation about Backlot came from the internal list of advisories. These advisories are sorted by date posted, so Backlot was at the top and then Maelstrom was right below. But the day after Backlot was announced, they changed the "posting date" on Maelstrom so it would be back at the top. They are literally trying to bury the news about Backlot (or really bring forward the news about Maelstrom, which I doubt is the case).