Sort of. They're still targeted at different users, though.
Heroku is for individual developers to directly develop their app in terms of.
AWS, meanwhile, is mostly for enterprises: it's a "virtual datacenter" for your (much-reduced) ops team to manage in place of a real datacenter. In that sense, Elastic Beanstalk is not a service that AWS provides developers—it's a service that AWS provides your ops team to provide to in turn provide to your developers.
