ARTART Last Call Review: section 4: predictable locations

[Kevsy]

From Tim Bray's ARTART last call review:

"To account for this scenario, it is RECOMMENDED that:

• the Publisher publish the api-catalog well-known URI at a predictable
  location, e.g. example.com/.well-known/api-catalog .
• the Publisher also
  publish the api-catalog well-known URI at each of their API domains e.g.
  apis.example.com/.well-known/api-catalog,
  developer.example.net/.well-known/api-catalog etc."

Is the first bullet point useful? The second one is obviously useful, because
if I'm interested in software at $anything.example.$anything, I should be able
to dereference $anything.example.$anything/.well-known/api-catalog