Does it really matter ? It's still viable. Heck I can kill dragons, bears, giants, anything. Using shieldbashing + using fast heals with the rengenerate stamina from healing perk.
I think shield bashin is pretty good.
A) interrupts dragon shouts
B) You can "stun lock" enemies by bashing then smashing.
C) Deflect arrows / spells
D) Knock enemies down by running over them with shield up.
E) Does good amount of damage.