In all fairness, Divinity: Original Sin is inspired by Baldur's Gate, and so is Pillars of Eternity. So I find it funny and ironic when people get mad at the game being similar to the game that got inspired by it.
In other words...
(Divinity: Original Sin being like Baldur's Gate) Fans: "Ooh, nice!"
(Baldur's Gate being like Divinity: Original Sin) Fans: "Baldur's Gate is Baldur's Gate, it should not be like Divinity: Original Sin! WTF?!"
The problem with your comparison is that the latter games (DoS and PoE) aren't 1:1 analogues; there may be some inspiration here and there, but both games are very different beasts. In other words, it's like getting an "okay" novelization of a great film...and then making a film based on the aforementioned novelization;
something will got lost in translation.
