This whole thread is about AA's kisses. And you call it 'a small detail'? And you say it isn't priority when you are literally in the thread dedicated to kisses? I mean, all the other companions have 4-8 new kisses (counting endgame ones), while Spawn has one. From an awful angle. And instead of evening this out, Larian worked on AA's kisses again. You really think it's fair? As a fan of both AA and Spawn for different reasons, I strongly disagree with you.
1. It has been like this from the start. Kisses were introduced in Patch 6. 2. AA is awful to a mindflayer Tav and he also reinforces how Tav's beauty is so important to him, so it makes total sense that these dialogues are only for Spawn. But it's not something you can repeat. AA has his own dialogues about Spawn Tav of his own to compensate it already. 3. When Spawn's fans complained that Larian doesn't give them agency to choose to run after Spawn burning in the sun, Larian completely ignored this request, instead they spent their time to fix AA kisses.
AA was never meant to be depicted as a good path, it was always intended to be his evil path. So how it can be unfair? It is what it is. What's the point of even having Spawn's path if AA were described as his good path as well? (and by good I mean "the opposite of evil"). It's not a bias, this is how Larian wrote these characters. No one is forcing you to choose Astarion's evil path, it's your choice completely. I Love AA BECAUSE he is evil. He doesn't need to be good. It really doesn't matter, because in terms of the amount of content, Spawn is definitely feels neglected compared to AA. It has nothing to do with who is evil and who is a good person. That's not the point at all. Yes, AA is extremely favored in terms of content. There are two different paths. Imagine how Shadowheart's fans would have felt if only DJ Shadowheart had several decent kisses, while more popular route Selune Shadowheart had only one new kiss with a bad camera work?
I feel things might be getting very heated if this is the reply to a quite milquetoast opinion from me. Have I not stated liking both paths several times? I've been one of the people asking for more neutral expressions for AA kisses since the beginning.
To your second bullet point, then this could've meant getting a dialogue branch for AA disliking Half-Mindflayer Tav, but it wasn't included. If people wanted to, they could complain about that. To your third, Tav running after Spawn is much more complicated to the flow of the ending scene than the kisses.
And to the final paragraph: I'm seriously puzzled as to where do I say I don't like AA for his evilness. Yes, that's what I seek in his route. It's pretty obvious. I never said he needs to be described as a good path as well. What I'm saying though, is that his good route is clunkily written in not trusting the viewer to figure things out themselves, so they just beat you over the head with it, when it'd feel much more natural if Astarion didn't look straight into the camera and went "Oh yeah I broke the cycle of abuse and stuff", which I think is obvious to anyone who is willing to engage with the story, so it feels goofy when he makes it clear like that was necessary. A feeling of neglect is also pretty subjective, so at least when it comes to me: I didn't feel that.
EDIT: I'd also like to include that the difference in the complaints about the Spawn kisses and the AA kisses are very different in nature and how they'd have to be prioritised. Bad angles do not equal goofy, RP breaking expressions for some players.