Point taken, but they could easily decouple the AF set from the MSQ. Especially since Grenoldt doesn't even show up afterwards and there's no mechanical benefit to actually doing the Role Quests if so.
The TEA weapons are glowed-up reskins of certain Heavensward relics, and they never retroactively introduce relics for new classes, so that tracks. (The GNB one is a super glowed-up reskin of the Forgiven's Manatrigger / Neo-Ishgardian Gunblade. Not sure about the DNC one.)