Tactical initiative is basically a useless skill on most escorts since they mostly have a Commander and Lt. Comm/Lt. tac boff slots. But on a science ship or cruiser that skill becomes very powerful. Also with some of the DOFFs (like the tac team conn officer) having a Tactically focused sci ship is very possible.
My Romulan Liberated Borg character made it to Level 30 and beat the (old) Defense of New Romulus with the skill point bug.