Regarding Durand building Galio in secret...
Is anyone else imagining how comical that would be? Demacia asked for shields from the artificer, so they leave him alone to get on with it. A little while later they come back to see him working on the beginnings of some huge thing, possibly obscured by a large piece of cloth or tarp to hide it from eyes of the public.
"Durand, what is that?" "Oh, the shields you asked for." He'd reply sheepishly, avoiding their gaze. "Are you sure? A shield is a lot smaller than that." "Yes, yes, I'm sure." He'd say, hoping to employ a confident bluster to get the soldier to leave him alone, shooing him away with both arms.
A few months later, a similar exchange would follow, each time the obscured structure getting bigger and bigger. Durand would keep making inane excuses and sending the soldier on their way, until he finally unveiled his Colossus, Galio.
And the soldier was never allowed to check on the progress of anything ever again.