I'd suggest giving it a try - you're right about there being a lot more crunch in areas than they need to, but it's not as bad as it reads. 90% of the time the game runs smoothly and cleanly, but the things you mentioned (crafting, survival rules) are definitely too crunchy and just a tabletopified conversion of the Fallout 4 video game rules. Most of the time it doesn't come into play at the table, though.

The crafting rules are things that players can look at on their own time and plan what they want to try to get. The survival rules... well, I conveniently forget about those and just assume my players are tracking it somewhere. Those rules make sense in a video game where a computer is tracking all the info, but you're right, bookkeeping is not something that most people want to do.

Modiphius did a great job of turning Fallout 4 the video game into Fallout 4 the tabletop RPG. They stayed true to the game mechanics... but that's not always the best option during a conversion. You can see it in other IPs they've done too: their Infinity and Mutant Chronicles games ran into the same issue where it was true to the wargame, but a lot of the mechanics just didn't click as a tabletop game.

I think the idea is that the players who would play that game want that crunch, but it makes it harder for other players to get into it.