The armor and skill cooldown directives this season suck. The broken armor one would be fine, if using an armor pack consistently removed stacks, which it doesn't. It seems like once you're bugged, using an armor pack doesn't ever remove a stack. I can use three armor packs in a row and it doesn't remove any 'broken' stacks sometimes.
The scavenged skill directive is fine if you're playing a red build and don't really care about skills, but it is punishing otherwise. If both your skills are active you can collect skill cooldown pickups, so you have to be careful not to pick them up until your skills are actually on cooldown. If you use your shield then put it away, its on cooldown and you need one pickup. Every time.
It just sucks going from one season where five directives are fine, to the next season when only three are really useable. Also, all the ammo directives are terrible but that's more personal preference.