Well we can start with Divinity: Original Sin 2 outselling Wrath of the Righteous, Kingmakers and Crown of the Magister combined on Steam by double the units and 3x revenue and still having more active players than all of those games combined despite being several years older...
No, we can't, because the comparison doesn't hold up even just on a superficial level.
These are games with VASTLY different budget and production value, which lines up with what I was stating about what actually drives sales.
You could probably fund the entirety of "Solasta 2: the Biggest and Massively Improved Sequel" on the budget Larian spent on their BG3 cinematic intro alone.
Okay...
*deep breath*
One final try. Why...do you think that is?
I think it is because the market for a strict DnD-based ruleset video game in the 2020s does not exist on a scale that allows for that production value.