I have to support Astralfox100 on this. Making people pay for each major update is very fishy and leans more to a scam and in fact I have even asked around and I was told that this is a form of NFT's which we all know how that turned out.
Plus as stated the finished product would be around $90 which is much more then major mainstream games which highest is $80 which includes/ or later comes with planed DLC, extra items/weapons/cosmetics, art books, and other items you would normally not get with the base game.
It's not narrow minded to state your thoughts or concerns or ask questions related to the game. With how many games that turned out to be scams these days it don't hurt to be cautious.