Background: crates.io team member, npm engineer 3 years
I’d like to share that package disputes on npm are handled by a rather large team of paid support engineers. Disputes are by far the largest time burden they have. They are handled manually. I believe, through my discussions with Bundler/RubyGem maintainers that they do not have this policy because they cannot support a support team large enough to thoughtfully handle these requests.
At the moment, the crates.io team also does not have this set of support engineers. Until the team is able to grow (I have advertised joining the team multiple times in the past few weeks with literally zero people taking me up on the offer), I cannot imagine how we would be able to take on the workload of supporting this.