But that is still better than nothing at all, which is the point.

The people you want (or want to be) are the engineers who are smart and experienced enough to get a first draft down that is pretty much right without a long drawn out process of figuring out the best way to do X, Y and Z with all the lengthy ADRs, discussions, debates, POCs, revisions etc. over and over again. That may be necessary if you don't have people in the room who know what they're doing and have the intuition through deep experience to choose good tools, patterns and abstractions at the start. Begin closer to the target, rather than far away and iterate to it.

Tell that to Facebook's Metaverse team