With traditional adult entertainment, creators are aware of the social ramifications (e.g., social stigma, familial ostracism, difficulty dealing with the future, and so on), and there is a decent theoretical economic framework to measure that.
I am not sure if there's the same this new army of "civilians" joining OF, let alone the additional toll it will take on the creators in terms of social ostracism, future prospects, future opportunities, and mental health.
The idea that someone shouldn't be hired for a job because they have/had an OF is puritanism plain and simple.
I expect that fewer people actually care about the "morality" and simply want to use morals as a weapon against women in the workplace.
This is why in general it is frowned upon by "certain members of society" as you call them.