State sponsored attacks are often more serious than non-state attacks. Most malware attempts to exploit victims for the financial gain of the authors--which is bad, but something individuals recover from. If someone is targeted for surveillance by a totalitarian state, it's possible that their life is in danger.

Gmail already warns users when Google suspect their accounts are compromised. All this is doing is changing a small subset of those warnings into a less-easily-ignorable warning for those users that may be targeted by state actors.