I think you're putting a lot more effort to say that the show with bad world building and filmsy conflicts (exactly how do you build tension when the closest you have to a really difficult fight was in season 1 when the vampire bitch got mind controlled?) hasn't really done all that much to establish a fun setting or interesting plot. This show is like watching one punch man but the fight scenes suck and the main cast are all pricks who never face any real difficulty because they're all overly powerful.
Obviously the source material probably does a better job (I don't read the light novels, especially when I can hear from people who have read it who state they're sick of the story's pacing and how bleak it is). The anime itself suffers from bad pacing and waste of characters (you know those likeable people in season 1? Yeah they're all dead). Then we get to watch season 2 where the stupid lizard people are too busy trying to do the horizonal monster mash then prepare for an incoming war and we already know the outcome of the upcoming battle. Then season 3 hit and they put even less effort than they did before with ugly CGI and trash tier villians (the ones that aren't the main cast but I'd argue that the main cast also fails to be exciting in the anime because they are very one note and don't do anything endearing).
tl;dr its a show where sociopaths fight other sociopaths while some of the sociopaths try to bang the other sociopaths. The fact that world building brings things out of nowhere and does little to be consistent is the least of the shows problems.
TBF since the show does a very poor job of explaining what rules are and aren't in effect (i.e does race affect your morality? Why do some people have powerful stuff while others don't and will never get anywhere close? what were people doing before Momonga came into be? What is even the point of Momonga's adventures? etc) it isn't really out of the question to examine if the characters actually meet their archtypes like the vampire who can cast holy... somehow. It is certainly a setting where game rules seem to be turned on and off whenever it would be convenient to the Nazarick tomb supremacy.
I think you're putting a lot more effort to say that the show with bad world building and filmsy conflicts (exactly how do you build tension when the closest you have to a really difficult fight was in season 1 when the vampire bitch got mind controlled?) hasn't really done all that much to establish a fun setting or interesting plot. This show is like watching one punch man but the fight scenes suck and the main cast are all pricks who never face any real difficulty because they're all overly powerful.
Obviously the source material probably does a better job (I don't read the light novels, especially when I can hear from people who have read it who state they're sick of the story's pacing and how bleak it is). The anime itself suffers from bad pacing and waste of characters (you know those likeable people in season 1? Yeah they're all dead). Then we get to watch season 2 where the stupid lizard people are too busy trying to do the horizonal monster mash then prepare for an incoming war and we already know the outcome of the upcoming battle. Then season 3 hit and they put even less effort than they did before with ugly CGI and trash tier villians (the ones that aren't the main cast but I'd argue that the main cast also fails to be exciting in the anime because they are very one note and don't do anything endearing).
tl;dr its a show where sociopaths fight other sociopaths while some of the sociopaths try to bang the other sociopaths. The fact that world building brings things out of nowhere and does little to be consistent is the least of the shows problems.
TBF since the show does a very poor job of explaining what rules are and aren't in effect (i.e does race affect your morality? Why do some people have powerful stuff while others don't and will never get anywhere close? what were people doing before Momonga came into be? What is even the point of Momonga's adventures? etc) it isn't really out of the question to examine if the characters actually meet their archtypes like the vampire who can cast holy... somehow. It is certainly a setting where game rules seem to be turned on and off whenever it would be convenient to the Nazarick tomb supremacy.