The tilting is for NVIS. You want to radiate the signal upwards so it comes back down within a 200 mile radius. For DX, please keep it vertical. Most military Humvees have it tilted to allow signals within a smaller footprint for troop communications. They don't want enemies to hear them even though encrypted the direction finders can spot them.
GREAT VIDEO...! And tossing out new ideas. What direction would you point the antenna towards when tilting the 45 degree angle - so you could direct the angle of radiation to a specific location, like a yagi...? In other words...if I was trying to focus the antenna signal say to the South...would I tilt the antenna top towards the South...?
If you want directionality then try pointing the counterpoise in the direction of interest. You can also use two wires in a vee. There is some advantage but not like a yagi.
I like the tilting. I don't have a vertical antenna, yet. I've wondered about that, so it was good to see. I'm with you that stealthy colors aren't always the best.