I'm going to be completely honest: this is a horrible idea. I can understand and appreciate the intents and purposes behind this, but the "assistance" thing should be presented as an option when creating a new character (sort of like Terraria's soft-, medium-, and hard- core presets), and be available to all characters, not a skill tree.
Note: the following statements are largely predictive based on current knowledge, and should not be taken as pure fact.
Firstly, it's gimping the customization options of a character that will be DLC; people who don't want the "abilities for retards" or "abilities for tryhards" (if that gets made) will be stuck with one (or two) upgrade tree(s), which goes against the presumed purpose (variety of gameplay styles) of having multiple trees in the first place.
Secondly, the unskilled player will be limited to a single upgrade track of a single character, and won't, due to afformentioned skill limitations, be able to try out most of the game's variety that it sells itself on.
Thirdly, I just can't see how a skill tree that gives assistive advantages to unskilled players would work. Isn't the entire basis of a skill tree that you unlock progressively more powerful abilities as you play? That would mean that the new player starts out with little to no assistance at the game's start -when they would need it the most- and would get more assistance as they get better at the game, culminating in them getting the most assistance when it's least necessary.
