Holy crap, people STILL feel the need to crap on Arifureta story like it's a goddamn sin to just enjoy how stupid it is. Seriously, if you want some fine literature, just read something else. Arifureta is just the author having fun with his characters and how short-tempered Hajime is (literally described as "more Yakuza than real Yakuza" in the after-story).
You think it's bad, okay, move on, stop sh*tting on it each time a new chapter comes out ffs. And learn to not take everything seriously too.
IMO the After-Story is one of the funniest Webnovel out there. And the author have a real talent when it comes to describing fast paced battles btw.