You are wrong NSKN is probably the complete opposite of CMON when it come to Kickstarter practices. Mistfall was the first game I backed on Kickstarter while I was a bit disappoint with the game mostly because of the horrible rule book and the game was probably could use a bit more playtesting I was more than happy to back their game again because they always good with backers. They don't do exclusive, if you go back to look on Kickstarter for Mistfall, the backers just simply get the expansions and extra for the pledge cost. All the extras and expansions are available via BGG store. The game however is pretty niche and I think only a little over two thousands people backed it so you really can't expect them to go hog wild printing the expansions so they were late coming to retails and was late available through BGG. I know my local stores still have some of the expansions and the game was not terribly popular so you probably can find them cheap just as you find the game.
I was so impress that they decided not to sell the game at Gen Con few years ago so the backers would be the first to get the game. I know they lost out on a lot of publicity but kudos to them. I even backed the stand alone expansion even though the first game didn't really wow me. The standalone expansion is really good however and fix a lot of problem with the first game. The game also do away with the time cards so you can skip those as the new mechanic is way better and much more balance. The game while decent for solo, I think it really shine as co-op game because you can played cards off one another (or you can just do two hands solo which is how I usually play most of my solo game).
Here is a link to one of the KS encounters on BGG, I am sure you can search for the rest.
https://boardgamegeekstore.com/products/mistfall-encounter-pack-1
Also best of wishes for you during this horrible storm and hope all is well.