You misunderstand. My point is that if Calvin and Henry take prayer and prophecy to be specific acts which are prohibited to women in the first place, then veiling is an unnecessary practice since women never pray or prophesy in church anyway:
- Veiling is specific to women praying or prophesying in church
- Therefore, women not praying or prophesying in church need not wear a veil
- Praying and prophesying is prohibited to women in church
- Therefore, obedient women need never veil themselves in church
But this is the opposite of the historic catholic practice, which is for women to always veil themselves in church. It’s good that Calvin and Henry followed the catholic practice, but their interpretation is inconsistent with that practice.
My assumption is that practice typically derives from interpretation, so if the catholic practice has women veiling themselves at all times in church, the most likely explanation is that the catholic interpretation of prayer and prophecy extends to the whole church service.