[muzani]

> the number of people with this knowledge is very small in most teams and sometimes there's none.

This is just it. It's expensive to organize things.

Bad architecture is worse than no architecture. It take time to build, then more time to tear down.

How do you organize with no experience? A mess already holds a structure. It can be evolved into the right structure. But if you adopt the wrong structure too early, you're stuck with a bad system that has to be destroyed and rebuilt.