>>718272094
Because most "isekai" stories nowadays is actually "my clever deconstruction of isekai" at this point. And it feels shallow because they're more obsessed with the formula than actually giving the story anything of substance.

Stuff like the original Digimon Adventure, or Escaflowne, Dunbine, Magic Knight Rayearth - that's straight isekai. Familiar of Zero is where the parody trend started, a romcom with a wizard girl who accidentally summoned a guy from Earth and gave him powers he doesn't know how to use.

FoZ spawned a ton of fanfics with "what if someone actually competent got summoned to the fantasy world". There were so, so many people writing their own takes on this exact premise. Gradually it started attracting "I'm a DBZ fan because I watched DBZ Abridged" types, and eventually writers searching for new twists stopped bothering to make the fantasyland specifically the FoZ setting at all. Especially when they realized it would let them *sell* their stories.
Basically, modern isekai and narou-kei is Tiktok. There are thousands of these webnovels. People got bored consuming one series and jump to another to find quick dopamine boost since there's a lack of emotional attachment to any of the characters or conflicts in these modern isekai stories and most of the time the plot is literally what's written in the title.