The thing is it isn't about catering nor is it trying to, it is about telling a mature richly expansive unrestrained story for the purpose of adventuring, having fun and bringing Faerun to life, which happens to be simultaneously uplifting and horrific, serious and lighthearted. It is about richly portraying what life in Faerun is like and not what life in Faerun should be like according to sensitive Internet people who clearly don't know the world nor lore. It makes the world feel alive and immersive by having such a wide range of choices.
Absolutely. From a storytelling point of view, it would possibly be weird if this wasn't an option.
Premise 1: characters in this game can have sex
Premise 2: characters in this game can be druids who can shapeshift into animal form
Can druids in animal form have sex? If not, why? I think the closest you could get to a meaningful answer to that would be to say that in their animal form they lose the capacity to consent, but that has huge problems wrt them making choices in combat
If both above premises are correct, you need a better reason for not having sex in animal form than "it squicks some people"