I consider 99% of my "defense of the architecture" strategy to be teaching my team why the architecture is important, how to think about it, and invite they commentary on it as we own and evolve it together. And of course if they are doing something and want input or are uncertain, then my door is open.
If PRs are a notable part of my architecture defense, I'm going to work on investing in the team instead of reviewing PRs.
If PRs are a notable part of my architecture defense, I'm going to work on investing in the team instead of reviewing PRs.