A person who is fun to work with is often praising team members for their dedication and work ethic, not reflecting on their own successes.
There are plenty of reasons products fail. Don’t let yours be that you didn’t empower your product owner to do everything they could to deliver success.
Do your blockers explain what needs to happen next? Or who's responsible for it? Or when it's due? If you want them to get done reliably, they'd better.