From an engineering point of view it should be a separate gem, requiring capistrano: if you don't use Harrow or never heard about it (me) you keep using capistrano. If you use Harrow you use capistrano-harrow. Same thing with rspec and rspec-rails.
From a marketing point of view I understand the move, but I don't like it much. Anyway, I'm using mina (less feature complete but much faster) so I don't get into this any further. https://github.com/mina-deploy/mina
From a marketing point of view I understand the move, but I don't like it much. Anyway, I'm using mina (less feature complete but much faster) so I don't get into this any further. https://github.com/mina-deploy/mina