Whas not better if every class had his own pasive tree?

Now is to late or maybe would never had work but just asking.

Path of Exile is about decision making. You can do whatever you want, but you have to make the most of it.

Just because you start as something doesn't mean you have to stay like that. Due to the skill tree, any player can achieve anything with any class. You don't have to be a life based Marauder, as you can go for energy shield at any time. It won't be efficient, but it is doable.

i like the current skill tree over the conventional d2 like skill tree but i guess it would be better if each character actualy had something unique, starting with a mara or a duelist makes little to no diference if they are both going to end at the biggining of the other one. diferent story would be if for instance the mara would get 1-2 extra hp every 10 str while the duelist would get 2-4% extra weapon dmg every 10 str.