Porn actors are not allowed to act like humans?

I found this interesting "job instruction" that is getting liked and shared by many actresses and is treated as a matter of course:

I was a little shocked, because this reads as if robots have to interact with each other. It reads ice cold and inhumane.
I work in a "normal" job and do not know the porn industry in detail, but in my average company, for example, at work even relationships have arisen that led to a marriage. And it is even common that colleagues even sometimes after work together what goes to eat or drink. just like it happens in normal life. people interact and sometimes even flirt. and the company i work for is conservative.
So porn actors need to be more stuffy than conservative employees? pornstars of all people have to be more uptight than anyone else on the planet? perform robot sex, avoid looking at each other if possible, and goodbye?
so that I am not misunderstood:
of course you have to be professional, of course you shouldn't impose yourself on anyone in a slimy way, of course you have to accept boundaries and so on. But this rigidity, which does not even allow a flirt anywhere and under any circumstances, is simply astonishing.
(By the way, this maybe also explains the many bad scenes in the industry these days. many scenes seem as if robots are interacting with each other. now i also understand why. how should any chemistry develop under such circumstances?)

I was a little shocked, because this reads as if robots have to interact with each other. It reads ice cold and inhumane.
I work in a "normal" job and do not know the porn industry in detail, but in my average company, for example, at work even relationships have arisen that led to a marriage. And it is even common that colleagues even sometimes after work together what goes to eat or drink. just like it happens in normal life. people interact and sometimes even flirt. and the company i work for is conservative.
So porn actors need to be more stuffy than conservative employees? pornstars of all people have to be more uptight than anyone else on the planet? perform robot sex, avoid looking at each other if possible, and goodbye?
so that I am not misunderstood:
of course you have to be professional, of course you shouldn't impose yourself on anyone in a slimy way, of course you have to accept boundaries and so on. But this rigidity, which does not even allow a flirt anywhere and under any circumstances, is simply astonishing.
(By the way, this maybe also explains the many bad scenes in the industry these days. many scenes seem as if robots are interacting with each other. now i also understand why. how should any chemistry develop under such circumstances?)