Egads. A publisher presumes they have ebook rights (Random House), they get a drubbing. A publisher
doesn't presume they have ebook rights and requests them, and they get a drubbing.
I agree authors should talk to their agents and lawyers first, but I don't see it as a big deal to send the letter directly to the writers. If you're foolish enough to sign a binding contract without contacting your agent / lawyer first, that's your own fault.