How so?
Pornlove stopped being an easter egg ever since Sokka directly refered to it,meaning it actually exists in the setting.
Book 4 slave route outright states it consits of photoshoots which in combination with the brought up Book 3 plot point indicates that earlier issues use the method as well,further implying that the other shown characters(like Bee and Katara´s mother?or was it Azula´s?)actively took part in them.
That is not "overthinking",thats making conjunctures on the basis of the narratives given points.
Moral of the story being,if you want to throw in random artwork dont make them part of your narrative and world building as that can backfire.
That doesnt free it from criticism though?
Not a sentiment I agree with to be honest.
Didnt she in the comics?Am I misremembering something here?
Well then let the artist go wild,a bit of creative work never hurt.