You seem to view them as opposites because you expect ownership to mean that all employees are motivated to have a sense of ownership over the whole process. There’s some benefit to that, sure.
The meaning the article is using is that there’s an owner, and they own the project without dilution. There’s not death by committee. One person or one team is given something to do, and they go do it without interference from the rest of the company. Whether what’s delivered at the end is fit for purpose is open to other people’s opinions and input. How it gets implemented and reaches delivery is the exclusive concern of one person or a very small group.
not at all. me, owner of a new feature: hey boss wanted to get your thoughts on this. Boss: "let's schedule a review for next week, and pull in x and y who are familiar with the space"
The two are literal polar opposite.