>>536943678
She is the Liara of bg3. Designated waifu and writer's favorite princess that gets more than anyone else.
Plenty of games have done that same thing, and even the term is coined by an even more egregious example. Things don't have to be measured and perfectly balanced though. Shart's writer just had more free time or whatever reason. The stool interactions were a voluntary free time project by one of the coders who just liked her and wanted to do something extra.
>>536945135
Most of them do, but Shart's is unique in that it always plays even if you're not Shart.
Wyll should have a cutscene about the tiamat cultists, Karl should have a cutscene about running through avernus, Lazy should have a cutscene about killing her cousins, Minthy should have a cutscene about Orin killing her soldiers, etc. But money and development time are not infinite, so it is what it is.