Route Globbing and Path Helpers

Given this url /api/:version/heroes/*publishers:

the generated path helper function is api_v1_heroes_publishers_path
the generated url when calling the function is /api/v1/heroes/publishers.json
there is no way to set the value of publishers parameter using the path helper. Eg. we can't do api_v1_heroes_publishers_path(publishers:'marvel,dc_comics')
the path helper is not usable as it doesn't accept any parameter and it always generates the same url.

Shouldn't this be more aligned with what Rails is doing. For example, if in routes.rb, there is this code snippet:

namespace :api do
  namespace :v1 do
    get '/heroes(/*publishers)' => 'heroes#get_them', as: :heroes
  end
end

then

the generated path helper function is api_v1_heroes_path (no publisher in the name)
it has a single required parameter that will be mapped to params[:publishers]
generated urls are: api_v1_heroes_path("marvel,dc_comics") => /api/v1/heroes/marvel,dc_comics

@nkipling for raising this issue.