Wrappers and license meta data?

There are several wrappers on Flathub. E.g. for Figma, WhatsApp etc.

Many of those Wrappers are licensed as OSS. But they load a webpage which is proprietary.

My understanding is that users use the web app and the wrapper is secondary. Shouldn’t the metadata for flathub reflect this and list the app as proprietary? After all, users use metadata to decide whether they want to use the app.

The docs don’t cover this.