I suspect that the reviewers see LOTS of low-quality apps written on portable frameworks every day. These are accessible and cheap options for doing quick development, and unfortunately that means that lots of junk gets churned out on them, and some of it even looks pretty decent since there are so many free UI frameworks. There are some platforms that are almost as easy and cheap to use as wordpress.

A company that does a respectable job of developing a nice-looking and performant native-application is going to stand very far apart from this crowd. The same company may have done just as well in terms of performance and UI conformity with React Native but will they stand out as well to tired and jaded reviewers? I think that is what the OP is getting at. No one can predict who will be featured, but true native is probably one thing that helps.