"5.) Butt cracks, boobies, and panty-shots aren't necessarily considered essential to the overall narrative and character development of any anime series. Regardless of whether fan service is an important part of the overall entertainment some viewers get from the anime they choose to enjoy, it's hard to argue that it contributes anything substantial to the story."
OK, this is bullshit and should be called off. People who tries to downplay eroticism and nudity as fanservice are morons. Anime is a visual medium where we can expand the boundaries of what is attractive or not, and if the story relates to genderswap, coming of age or if you want to go there, even about the trans experience, removing the body parts and taming the "sexiness" does a disservice to the show and the story. It's like pretending Barbie's body is anatomically accurate.
I can argue that the availability of butt cracks and boobies is part of what makes Anime great in the first place. Not all Anime needed it but it's there for a reason. If the cultural progress that we have achieved demands that there should be less of it, then I should I say we moved into a sex negative world where Puritans have won. And that's not really a creative environment we should tolerate.