The SB24 (the new farm zone) DOES award DIL, but it's nothing but spam the spacebar for 1 minute, collect rewards. Why in the hell would you want to do that, and why's it preferable to what we were doing? Boring as all hell.
To be honest I found STFs exactly the same, rather mindless and boring, especially having done something like 3 a day since the game went F2P.
On the otherhand fleet actions enabled me to get my dilithium grinding done quickly and allowed me to get on to doing something fun (like PvP and exploring new Romulus).
With cryptic nerfing the dilithium reward of fleet actions I've instead got to waste more time grinding it.