I have seen a bunch of these rants on other boards but did not see one here.  I realize I may be way late to this discussion, but it took me awhile to hit the wall many have spoken of.   7 seasonal missions Sunday.  11 Yesterday.  12 Today.  30 missions AFTER I STARTED COUNTING.  So quite a few more than 30.  I need one last boss (Khorne)  and the faction mission just is not hitting.   Three days of grinding and making me feel bitter about a game I have loved for over 330 hours is a pretty bad look.  

My questions are these:

Why no mechanic where each seasonal mission has to pop up after x number of times if it has not?  I don't think once every 30 is unreasonable.

Why no mechanic where the player can influence the seasonal mission?  If you kill all Khorne harbingers to fill the bar, you get a Khorne seasonal.

Why no week of -fill in the blank- where seasonal missions A-E spawn more frequently, followed by a week where missions F-J spawn more frequently?  At least I would feel like my grind had some purpose then.

Am I really that unlucky?  If I am, why would you ever make a design decision that prevents a player from finishing the season, or at least creates a miserable grind, where you can literally need one last thing, have no control over it, and you just don't get it?  

I am so frustrated right now.  God help me if I finally do get a Khorne mission and the 50/50 coin flip does not generate a boss.  You think the inquisitors feel exquisite hate for the Xenos....