This is a little of both, features and feedback...
First the feedback.
There has been a lot of backlash about the black market lately, and rightly so. It is disgusting, our time spent logging in to the game is worth very little. 100 BA = 60 coins now... 5 days for a mid-high lvl player of grinding mission is equivalent to some kid spending $0.60 american... it's insulting. I'm not going to comment on the gamble as that has already been addressed by @CM LXC.
The feedback I am trying to give is that the coin rates in the black market makes players feel unappreciated unless we spend money. This reflects our initial concern of kixeye being pay to win. I know that isn't the intention, but I must convey my thoughts as a player.
I would like to see some things in the BM that reward our time. Offer older event hulls, for BA.
For example, offer a zeal battleship for 150-200 BA. Not the blueprint, just 1 empty hull. This is a commensurate reward our hard work. 10 days of work a single ship is fair. This may take some effort to implement, but the added work is worth the reward of increased player loyalty and a willingness to coin more to support a fair game. Loyal players will coin to support a game if they believe the coins are a reward to the devs, not a requirement to be successful.
Tl:dr, the bm as it is now is bad mmmkay