Uh, actually I was there, and specing john. He almost immediately marked the Rc, ran to the lava room and started building it. Incidently, since you may not know, the base he was attempting is a very strong base for humans on ancient remains, versus the default human base which is horrid. Its also a very hard move later in the game, particularly against experienced aliens who know not to let humans move there. Sadly a goon caught up with him and the move ended badly. I give him points for trying though.
He knew what he was building and where, and his idea was very solid, so no I won't be denybuilding him. If anyone would have spawned a ckit and built a repeater in base the humans would have been ok. Sadly it didn't appear that anyone did.
No, I for one won't be punishing every good player who tries for a first minute base move to a really hard but really strong location. He made a good attempt in the only moment he would have had the chance (against experienced players). Perhaps he should have said something, and perhaps we should be more forgiving.
FWIW, I didn't do listplayers till people started complaining, then I saw that it was actually tjw. If that was his son, then his son may be one hell of a wicked builder.