I started a new SW during the Neverember Incentives event, and was receiving Neverember Incentives up until this week. I have 75, from Adventurers Reward boxes as well as the first stages of the AI campaign. I had read somewhere that the final 25 Incentives (making 100, for the Runic Bag) comes from completing the Renaer's Salvation campaign unlock.
Completed Salvation today and turned it in, still at 75 Incentives - no new points earned.
Did they somehow advertise "Start a Neverember Recruit, earn these rewards on it", and then turn off the rewards part-way through? Since they time-gated the campaign to only one possible unlock per week, it seems odd to then turn off the rewards before someone can complete them.