Stella Creasy MP's locum MP experiment

Catching up on non-corunavirus stories, I see that Stella Creasy MP's locum MP experiment has run its course.  The details of the casework I don't find surprising and would be familiar to many caseworkers and councillors.  The key problem I see with that role is where the constituent wants policy casework, explaining the MP's position on this or that public issue, or asking the MP to lobby ministers.  I don't see how that can be farmed out to anyone else.