Correct, I agreed with that long ago. The argument has long progressed past this point. She should have worn the veil for her interview.The secondary one is a variable over which she did have control, her clothing.
Of course she has control, religious sentiments aren't a medical necessity.
Religion is only a set of ideas.
If she wished to cover her face and thus restrict communication, she should have informed them at her interview so they could take that into account when assessing her suitability for the post...