Concern 1 ? Active level 50 players are refining far less Dilithium than we expect them to.
Prior to Season 7, the average amount of Dilithium refined by an active level 50 player was 3100 per session or 13,250 per week. That is far less than the cap of 8000 per day when you consider that most level 50 players play multiple days per week and slightly more than the average hours per session.

-> That is probably because the only effective way to grind dilithium is doing STFs. Those STFs are boring if you have to do them multiple times a day. I for example only play Cure Space Normal or Infected Space Elite. All others are boring or the risk is too high to loose it with a pug. Then you have your 45 minute cooldown or what not and limit us in getting dilithium and you still wonder why lot of players dont reach the cap? We have other things to do instead of wasting hours and hours on the same content. Now you changed something, lets see if its successful. As far as i heard, you removed dilithium from the STFs which means that i probably wont get any dilithium at all anymore (except when i work even more and do some projects which i dont want). I dont play the fleet actions (very rarely) because they are boring. Its always the same. You have to defend XYZ. I dont like to be defender, i am an attacker.