Do note how the criteria actually only require one of the former and one of the latter group. If your wife avoids foods AND doing so causes psychosocial distress (such as not being able to eat with coworkers and consequently getting excluded) then the diagnosis does apply.
In my wife's case, at least, it doesn't cause her psychosocial distress. It just means I usually have to wait until she's got other plans before I can order from a sushi restaurant (I say usually because sometimes she's fine with getting a noodle dish). None of the bullet points apply to her.
In fact, I had more trouble finding food I could eat at restaurants when I was on the keto diet (and many years earlier when I was on a vegetarian diet), then she does right now.
The parent poster also didn't mention anything about it significantly interfering with social functioning.
