Lottery of the mark & light armour
I might have missed one but so far the rewards seem to have skipped light armour rewards in favour of medium or heavy. One of last weeks had 2 armour bits in one lottery but both were medium. I'm also not counting cloaks as an armour type as those are the same for all just varying on stats.
Statistically this is nothing to worry about as the chances of actually winning anything are pretty miniscule and getting smaller by the day as s the level cap.
But nonetheless it would be nice to see some kind of rotation to the armour type instead of what appears to be a slide away from one particular type.