If I take your comment to mean collaborating is good and some people are better than others at parts of a solution because they are currently specialized I agree. The "right" answer is often difficult in practice especially when you depend on many other teams as dependencies and need to get something out the door.
On the other hand if you're drawing diagrams of things you haven't personally made sure could work well together at even a trivial POC level then I am not a fan because that is precisely why some devs hate anyone who is called an Architect.