You ever hear of the bikeshed effect? It’s the idea that if you get a committee of laymen to make a decision on something extremely complex, like a nuclear power plant, they’ll hyperfixate in on the one thing that they think they understand - the bike shed. So instead of oversight and planning of the important bits of the plant like the reactor or the safety system, each decision maker will take their turn altering the color and the dimensions and the positioning of the bike shed.

I’m gonna guess that the wall was their bike shed.