Is that first of all, the player never gets notified about having acquired points, so that means he is playing with a significant disadvantage when progressing through areas while having 12 unspent skill points, or more.
Secondly, the points are gained too often, forcing the player to spend a large amount of time in this pointless skilltree minigame. Contrary to the previous mechanic, player only had to read the three lines of text of options after leveling up, select one, and they could immediately resume playing, hassle-free! The given options at that time were also more impactful, in my opinion.
Thirdly, this skill tree, as argued by a person I once knew, makes the game unnecessary complicated. Sure, an RPG is not usually a simple game for casuals, but with the item stats, reroll items, crafting system, guilt system, spell runes, and player resistances, GUILT: The Deathless already can get a bit overwhelming for the average player.

idk, maybe I just played too much Path of Exile.