LB was never fine at all, she had free damage just for point and click and pressing W to the target, which was already enough to kill them with E after, not even counting in her R. She had stupid mobility (which isn't too stupid imo) that gave crap tons of damage and a large dash, basically pre-nerf Yasuo E x10. That was just pre-rework
Now it's insane damage on the SNARE instead of the W which made the boards realize how big of a range it is, even without the slow. Every spell she hits on you = you will get hit pretty hard or even chunked. Her clone is even more thematic now, but also very annoying for Champs with breakable shields like Sivir Shield or Yasuo Flow Shield/ W
Clearly you are a fanboy/fangirl of LB and got pissed off, because it seems like you haven't ever seen what LB was.
Pre-rework LB didn't even need to follow a build, she could literally get 5 Rod Of Ages and not pay any price for it. One of the dumbest things I've seen is "freebuild" champs where they can build anything and still do damage like AP Nasus and AP Tryndamere.