if we go 2 levels down the stack, to me that situation with private APIs [more precisely - "API services" ] provides a glimpse into the future what would happen

if we go 2 levels down the stack, to me that situation with private APIs [more precisely - "API services" ] provides a glimpse into the future what would happen with Internet without net-neutrality (as the service of carrying your network packets is just a "network API service" which owner of the service would be able to decline/limit access to to anybody he feels like to).