Often when I'm navigating a list of tasks in Maniphest (or from the Dashboard), I click on the milestone tag that's associated with the task. When I do that, it takes me to a reasonably useless page like this:
I then have to click the breadcrumbs to get to where I need (this target is small on the page relative to everything else):
I can't think of why anyone would actually want to visit this page after clicking on a task. Almost certainly the intention is to view the project that contains the milestone, because milestones themselves don't have a lot of information associated with them (they're created every N time period based on sprints or w/e, so they're quickly used and discarded in comparison to the lifetime of a normal project).