That title is misleading -- coups makes sense, mostly, but a clearer title would be "Leah R revokes all access to LibreBoot code and infrastructure".
This is concerning to me, though, as I have a laptop with Libreboot, mostly to mess around with firmware and low-level stuff, and I'm now worried that some disgruntled owner would insert, out of malice or oversight, something that would mess things up a bunch.