what's distinguished them from others is their experiments with mixing smth that cannot be mixed together
They were best at that in 1990-1993 when they were mixing about three ballads amongst their 20 song setlist of songs like Standing sex, not only is three songs one more song than a huge amount of other metal bands would play, but it wasn't just the number, it was the style of the ballads, these are really sad ballads, way sadder and more classic/w orchestra than any other band would play next to their metal epics. Also the small portion of ballad type breaks in songs like Kurenai was unique, but they didn't abuse it like now.
They were best at the unique veriety of ballads and metal back then.
Something Yoshiki also doesn't realise, you can't come out saying "this next song Jade, is going to be the most heavy song X Japan has ever made" or "we're gonna rock the house down with this/these new songs", or a type of comment like that about the current setlist/jade/btbf when you're the person who made Blue Blood, Standing Sex, Vanishing Love, Stab me in the back etc. When you've made those types of songs you can't claim anything like "we're gonna rock the house down" with Jade or change history by trying to ignore and forget the past. That's just what I think about a band anyway.