which in the context of 'i can't smut with-' comes down to icky faces. not to mention i've frequently seen people use the excuse that everyone looks the same and they can't tell real life actors apart because apparently there are too many weebs with prosopagnosia or some shit. voice actors didn't agree to play porn either. animators didn't agree for their art to be used for pornographic scenarios. that argument is bullshit (especially when at least half the characters played are ones used in sex scenes/love scenes in their canon, which happens more in la canons than in anime outside of hentai porn)