As a rule of thumb, I wouldn't assume that any scenario you came up with on the spot was overlooked by an agency whose job it is to not overlook complex scenarios, let alone trivially simple ones.
To start with... states can and will absolutely block the sale of strategic national companies to foreign actors. But I'm sure you knew that.
The link shows that this isn't something I've come up with on the spot, it's literally happening today, and it's not being blocked. They can, yet will not, because scared of the US.
To start with... states can and will absolutely block the sale of strategic national companies to foreign actors. But I'm sure you knew that.