Jesus Christ I didn't know/see all that shit and my take was "I have seen multiple projects done in by death via Kickstart success, so I'm going to wait until this shit is actually in people's hands and being painted/played before I give any sort of ruling".
I have friends who got in on the Darkest Dungeon TTBG and that shit was years and another something like $100/150 in shipping costs because the chinks they were partnered with for fulfillment left them high and dry once the checks cleared.
Also just going off that: said friends backed up to the full $500 or w/e level, but by the time all the shipping drama was done they basically looked at the figures, played a couple games, and its now collecting dust in their closet.
Also, while we're talking overpriced plastic spacemen, if you want some shit to clutter your shelves the Joytoy Warhammer 40K figures are pretty nice.
This, I've seen way too many board games, TTRPGs and miniature games getting crowdfunded but then you rarely see any discussion online and I recall reading how a lot of the time backers of TTRPG books just get them to put on their shelf and never use them.
I will confirm this is true even if you play the games you buy.
I backed the OSE kickstarter, but honestly the books usually stay at home (except for one of the "rules tomes" I have in my bag as a just-in-case) because its easier to either have some 8x11's with the class rules printed on them to hand out than have people pass around copies of the genre rules, or they can just the OSE wiki (or any B/X reprint). or totally legal PDFs. cough.
I also backed a "system independent" book about the underdark, basically "The Dungeon Masters Guide to Caving", and the book is a great resource. Its also beautifully put together with actual clothbacked saddle stitching... but having gone through it, I don't think I've touched it in the past year because I've injested the basics and if I do have a though about wanting to look up something, there's the PDF. Also I'm in between campaigns and the couple one-shots I run even if I wanted to theme them around caving, a one-shot isn't going to be getting that deep into the woods. So even if the content gets use, the book probably doesn't.