I'm sorry, but I don't believe this until I see something remotely official.
Grouch2 has zero posting history; there's no official announcement; Random House just signed on for Canada; and I can't imagine that Overdrive would enact a change that big by just "circulating" an email to selected libraries.
I mean, really. "This will not stand?" Boycotts? Y'all don't even know if it's real yet.