Pretty straight question, mainly because in my recent research I have found all sorts of sources which do not necessarily seem trust-worthy or centered.
In my particular case, I'm building a project team to handle business priorities end to end for one specific line of business. I find myself in an organization that has many elements that may respond better to a traditional PMO office, however upper management decided to call everyone a Product Owner and have proxy PO's, which render a workflow that ends up in nothing going live in less than 2 months (if lucky), and the products are not the full solution, so we still need to talk to several other teams to fill the missing gaps.
I'm not claiming this is precisely wrong, but because of this little example and my still short experience, I'm trying to provide my manager (the sponsor on this new project team) with sensible data to be able to decide, and I have found myself reading sources that condemn Proxy Product Owners while others just say it's a common solution for offshore teams.
It doesn't feel like such sources come from a centered perspective, but rather a way to defend their own perspective or trend.