One size does not fit all
Successful project governance is not a one size fits all or a set and forget once it is established.
Project Managers and Sponsors should understand this and always be open to re-calibrating their project governance forums and approaches to suit the current status of their projects to ensure they have the right amount and type of governance at all times.
There is no one size fits all approach to project, program and portfolio governance. This is where some organisations fall down. They try to apply the same level of governance that is effective for large transformation programs to small initiatives.