I think the response article has one paragraph which is important to this discussion:

"Since Fedora Flatpaks converts RPMs from the Fedora repositories to Flatpak applications, it is much easier to trust and audit from a Fedora Project developer and maintainer perspective. Furthermore, these RPMs already comply with all Fedora Project’s conducts and standards. They’re all built inside the Fedora Project’s infrastructure and based on RPMs that are maintained by Fedora Project maintainers. Flathub, on the other hand, is independent and unaffiliated with the Fedora Project. This also makes auditing harder for the Fedora Project maintainers."

Which highlights the importance of prioritising Fedora packages over Flathub packages, regardless of whether they are RPMs or Flatpaks.

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Jarryd