Don't know what you want with this post, but even if I agree with you about the diff spikes, this game is not bad at all in terms of grind, that's unless you want to build really unnecessary and impressive buildings or have every weapon fully upgraded, the only possibly really time consuming anoying part should be finding the places with the resources to grind (big mountain / swamp) and maybe to have a lot of the best food.
That said the last biome, and the way they done to have we be able to craft the latest items, I personally consider it incredible awful.