About to read the review, but I myself have no major hang ups on the content of the series, I did kind of like the premise, there are parts of the series I did like but it's like half the series fell flat.
It has good stuff like the D&D concepts but the slower episodes/scenes seem really dull, part of that is the slayer himself, who is completely anti social and barely interacts with any characters around him
I admit I did have a bit of schadenfreude from the reaction the first episode got, but I do agree it should come with a warning, the other problem with the first episode though is that it puts shock factor out so much that nearly everything else is just reaffirming what the goblins do, turning them into quite a lazy caricature between beasts and moustache twirling villains
Even in one fight that I really like, the elf girl seems to get off easy, nothing really happens to her but everyone else is running off 0 hp
Biggest problem with the series for me is a poor effort to be shocking can make much of the rest of the series dull