"these are my examples"
I painfully listened to all of them and came out the other side proud to not share your tastes.
"would you rather prefer the Counterculture influenced examples where Electro House progressivism didn't influence the composition yet?"
I do not consider any of your examples to be discernibly Counterculture-influenced.
As far as I am concerned, the last respectable Jpop artist was:
Romantic magnum opus (healing my faith in true love since 1998):