This is such a dangerous precedent to set in GMS; Jett players who invested their valuable time, energy, and money into levelling/progressing their characters have to be treated better than this. It's unimaginably cruel to remove a class from dedicated players. I main Hayato and full disclosure, I am very worried about what this line of thinking (Jett bugged let's delete instead of fix) will hold for the future of other nonKMS classes. Not even that, where does it stop? Who decides where it stops because from the look of things the players' opinions and views don't matter even a little bit to Nexon. People chose to play Jett because they liked the character; that's it. No other reason should be needed for Nexon to say "they deserve better; let's figure out how to get this class staying in the game". Worst case Nexon should've left Jett as is and said "sorry we don't have resources or motivation or whatever excuse to keep Jett up to speed with newer content so while we will stop adjusting/changing Jett completely, we will leave the characters in game still for those who want to enjoy; should Jett players willingly want to change jobs after our decision to stop working on the class in the future, they'll have the opportunity to make the switch". But this last bit requires compassion/empathy for the players and an understanding of what these extreme decisions can do to them; something time and time again Nexon has failed to show any hints of.
