Cryptic dropped the GMT Defari Invasion then dropped the East and West coast events. Perhaps they are reworking it. When it returns, we need to see about getting a fleet event.
The DOFF system provides a ton of data samples. I also took advantage of the Crafting Event (20% discount on non-replicatable particles). I was able to craft an Aegis set for my KDF Sci, Jasmine, and one piece for my FEd Sci, Doc Lee. Crafting the Aegis set put Jasmine up to Master Crafter, so I now have MCs on FED and KDF.