Earlier quoted context omitted.
I'm already able to pivot every day—it's part of the autonomy inherent to me being hired as a professional. I can make decisions about my work, and ask my colleagues to make decisions about our group work, as necessary to deliver on business needs. Making a process and a specific time about how to get approval to pivot is less agile.
You ability to pivot as an individual is already limited based on your team. In fact a unilateral pivot is destructive and can inflict pain on everyone else. I'm not sure how having implicit and ad-hoc patterns of interactions is agile. Why? because you can't improve what you can't see.
If you don't have that level of trust in your team members, sure, formal process makes sense. And I'm all for it if that's what's needed to deliver business results successfully. But you're then valuing processes and tools over individuals and interactions, following a plan of when and how you may respond to change over letting individuals figure it out, etc. Again, it's perfectly okay if it's not agile if it's what the business needs. But my assertion is it's not agile.