On one hand it makes sense (if you think of the people most likely going to buy the Ring product) that CS would need to be able to help them through the process of setting the cameras up and assisting in troubleshooting, but would be completely different if it at least had to be authorized each time.
However, the thought that you are basically giving ANYONE (at any level) the ability to peer into your life without you knowing (and by extension hackers/curious that can gain access to their subsystems or POTENTIALLY law enforcement without a warrant), should be absolutely terrifying in the USA, and that doesn't even speak to the risks associated with a country that has fewer protections from government abuse.