It is intended, you shouldn't deal more base damage and more bleed at same time, unless you use Sneak Attack.
Greetings
Yes, but Shadowstab and Blind Spot are similar, why you just cant increase %damage of Shadowstab and damage dealt by bleed and just remove Blint Spot skill at all.
This is not supposed to be a linear choice of player. There are times where bleed is better than dealing more base damage and vice versa, usage is expected to be situational.
Greetings