It's mainly due to the fact that streaming took over the world almost completely,and ktv attached very well to this phenomenon.Korean drama has always been good

It's mainly due to the fact that streaming took over the world almost completely,and ktv attached very well to this phenomenon.Korean drama has always been good(it's very similar and reminiscent of eastern european drama, which is very dark[arguably from the post-war,ex-eastern-bloc mentality which in SK somewhat doesn't wash away due to NK] but realistic ,often inspired from truth; which makes it attractive), and compared to 5-10 years ago where you'd have a lot of fantastic and (sometimes overly-)romantic series, somewhat similar to chinese or even indian pictures, they detached from that and instead adopted a more western/US style, though still remaining different.This is a cultural shift in general so it was to be expected. The subjects have changed, the transition from other streaming platforms to netflix (k-tv was big in the streaming world before netflix took over the planet) was very easy for the ktv audience, and why not let's mention the uncomfortable obvious here: it did not go woke, due to which they have a lot of success amongst western audience.