>>33180261It helped start a trend of licensing web novels to have the author write a LN version, which would then get an anime to promote the LN. 1990s and 2010s LNs were much more focused on shonen fans and older males (A Certain Magical Index, Zero no Tsukaima, Shana, Boogiepop, etc.). Unfortunately most web novels are really, really, REALLY derivative even by jap standards. The isekai part of them usually happens because the author is shit at worldbuilding. Having an unfamiliar world means they can asspull whatever they want, and the gamelit variety of them lets the author make anything happen for the thinnest, laziest of reasons (as someone who has dabbled in writing web novels over the years I can say it's a lot easier to say that the protag moved faster than the enemy could see because their speed stat was higher than it is to come up with a lore heavy reason for the same outcome).
Ultimately calling most modern isekai shows "Isekai" is almost a misnomer. They take place in other worlds but almost none of them have events which are informed by this predicament (think how Wizard of Oz is very focused on Dorothy adapting to and trying to leave Oz). Instead the other world is merely a vehicle so the author can serve up shit contrivance after shit contrivance.