It IS purely about water on the moon. I can bet that it is MUCH cheaper, easier, and faster to gather information by using the proposed method than developing a robot with diagnostic tools, safe landing mechanism, remote controls, etc., not to mention it doesn't put any humans in danger.
It really isn't celebrating the weaponization of space, it is the continuous search for knowledge about our surroundings. I am gonna try to wake up early in the morning to catch the live feed.
If there is something intelligent enough to monitor our mission to the moon this morning, they will probably laugh at our idea that is equivalent to putting a firecracker out there to see what shit flies up when it explodes. Far from intimidating or aggressive to a being that would have to have extremely superior technology.