That is the viewpoint of a competitive player. I’ll even say further that the majority of players doesn’t even craft. The majority of players play 10-20-40h and are done with the game until the next cycle, if they even return next cycle instead of next year.
The majority of players are casuals and just want to have fun for a while, nothing more.
It’s true, though. Every build works with 0LP. It might not push past 300c, or 1k when you want it to push 5k, but it will still work. Not even the frost claw build needs LP. If you’re a competitive player, yes, you need LP for every build. Because you need to push to the max.
I should clarify that a competitive player doesn’t mean that you need to top leaderboards or anything like that. A competitive player is simply someone that wants to push the absolute max, preferably close to the limit of what is achievable.
A casual player, on the other hand, just wants to play to have fun and probably won’t even finish the game. It’s the player that when given difficulty options will choose the easiest one.