Not representative, but a datapoint:
I came to BG3 because I loved Divinity 2 and that one awesome Game Music Video from early access gave me the hint that BG3 was coming by Larian.
I got drawn in by playing a dragonborn, was held by a mix of strong characters, great voices, beautiful romance, sex (yes, that too), and Alfira.
My enthusiasm was stoked by the mix of hard decisions, freedom in movement (I didn’t actually travel the underdark in my first playthrough), beautiful backstories
Shadowheart with the wolves, not romanced
, and the storytelling for a mature audience that did not mince words.
I was completely taken in by the character progression and intense love story of Lae’zel
.
There are so many points where the game could have lost me (and in part 3 it almost did), but it managed to keep my enthusiasm burning throughout the game — and that’s why I’m here now. So it was almost always good, and some parts were awesome.
Maybe one more point is that the opening scene already scared away many possible haters: those who willingly play a game where a worm claws its way into your eye won’t be taken aback by the later writing. And this was in the cinematic trailer on the store page, so you’d also not get disgruntled buyers.