We talking about Model 2? Yes, I think adding a pre-filled "reviews/reactions" section would encourage people to add fic commentary to the podfic page. Leaving it off (and only offering the one line with the red link to the yet to be created fanfic page) might push them to create said fanfic page - or they might just start typing below the FanFic line anyway no matter what subsections we do - or do not include there.

Personally, I think it would help if we had several examples we could test to see how they eventually play out. And I'd leave it up to the person creating the podfic page to decide which to use. That may be an obvious statement, but I felt it needs to be said,