"particularly the quick pace of it."

Absolutely: the jump to $14 is an increase of over $2 in one shot.
I just finished listening to a very interesting discussion on NPR's "On Point." They were analyzing the recent move in Portland, OR and the roll-back of the recent increase in St. Louis, MO. They pointed out that an increase of $1/hr was enough to unsettle things and hurt more workers than it helped.

Increasing the minimum wage can be a good thing, but only if it's done with care. There's nothing prudent or incremental about this proposal. 
Implementing it is like playing with fire... very irresponsible.