yes really relevant/related, as that talk also mentions that a sub-1 Hz variation of the nominal 50 Hz is already enough to cause blackouts - which is also the case for the current blackout: https://x.com/Nexuist/status/191687508022891747
the talk discusses further aspects of the European energy grid which are relevant for the current situation.
> The used radio protocols Versacom and Semagyr, which carry time and control signals, are partially proprietary but completely unencrypted and unauthenticated, leaving the door open for abuse.
You don't think the omission of encryption and lack of authentication imply a criminal absence of due diligence.
I guess some huge contracts are in the offing fix those necessary features which should have been built-n in the first instance.