I think "make the product better" is really an excuse, considering what has actually happened with the changes in Win10. The most useful changes have been suggestions that came from the users themselves (of which they ignore most of them anyway), not by watching them. "The telemetry told us to do it" is a convenient excuse for making unwanted changes, because everyone else doesn't have access to the data and even if they did, it could still have been massaged to fit their narrative.