You can ignore that skill if you find broken.
To me it's just clever use of game mechanics. Why remove everything that lies outside of the 'beat up sack of rice until it topples over' mantra?
In the same vein your could argue that Emily in Dishonored 2 should no longer be able to use Doppelgänger and Domino together, yet it is probably the most beloved combination out there... despite it being "broken" in your sense.
Please leave fun alone.