Say what?
SE5 is a Turn Based Strategy game.
Tactical combat of any sort is like cheating unless you're playing hotseat against humans
As for SE:V - feature creep can be a nasty thing. Just how long are games going to last if every battle, on the ground or above it, is fought on a tactical map? At least it'll be an option.The same amount of time as they do now?
Tactical combat is for those who can't stand the heat of playing the pros online. It is pretty much cheating against the AIs.
Only in hotseat multiplayer is it fair to use, and then, yeah, it will take forever.
Just play simulataneous turn games instead, and all will be well in the world until Eorg stomps you with 5000 fighters.