I feel like code ownership is a good thing in general. It makes you care a lot more about the product you're eventually shipping. It was a big deal at Amazon when I was there, and I'm assuming it still is. Sometimes I was not happy fixing things at 2am when I was on call or cleaning up a bunch of code that had been neglected for a while, but the feeling of ownership definitely motivated me to care about the issues and fix what was wrong.
A lot of the problems in the article have more to do with your ability to work with others and how bad your ego is. If you can't work well as a team and mentor more junior engineers it's going to be a struggle to advance your career