I believe Castle Lock was a signal to secure the board because of what was about to take place.
The Great Gazoo also had George Jetson's face.
I agree with what you say.
There is no way that Q or anyone else with Q-Clearance is going to give answers that haven't been authorized to be released.
In addition, although those with Q-Clearance have access to all info, their access to that info is often compartmentalized in a need to know manner.