Really cool, that's exactly what I would except the next generation after Heroku to look like. It's weird that Heroku is still so popular while being so expensive and with a product that hasn't improved in years..
At the same time, simplicity is needed more then ever - k8s is cool but now people are spending crazy amounts of time and money to set up the devops goodness to run simple apps
So we thought, why not have both simplicity and power? We're just making the deeper layers of configuration optional, but still accessible.