Yes, I read the patch notes, and realized the number of missions was going to dwindle since I would often see 2-6 missions going to the same settlement, and the factions differed. But now there is nothing (in those systems). If it is working as intended, they may have overshot a bit...
there are only so many slots available on the mission boards, so those missions (from a single faction) are competing with everything else (from everyone else). I found one system with a lot of powered-down stations - from two factions in negative states - and only three of those settlements had restore missions when I checked the board. It's a pretty dramatic reduction.