The thing about berserk is this:
There will always be buildups before some epic events, they don't just pull them self's out of Griffith or the godhands ass, in a few years when people read this arc they will say "Omfg the art is so amazing" and love it, since they don't have to wait for the next one, this is a great buildup sequence, and you will have to see the whole thing to appreciate it.
Tl;dr in a few years with more story, this few chapters will be considered legendary.