And an escort with Commander Tac, Lt Commander Tac, and a Lt Commander Engineering, with no draw backs, is not OP how? What you have there is never going to happen, not at least until T6 comes out for all classes.
Drawbacks are weaker shields and hull then standard Cruisers and no dual cannons. Made up for by greater firepower (Due to more tac consoles) and more mobility.
It'd still be an escort at heart, but with more cruiser-centric features. Slower and less mobile then most of the escorts, but still faster and more maneuverable then cruisers. A Panzerschiffe, if you will.