you really think that technical criteria is much more practical and less controversial  this statement clearly shows you have not been involved in neutron and openstack long enough to realize otherwise  p why are people so concerned about the  hopping effect to me it is a non issue  people tend to stick around for a few years  that s what it takes to understand the full openstack machinery  if they do not most  likely what they produce is not gonna work or rot quickly  that is openstack way of life  now this is not about core vs non core  so please let us stop raising this point 