I for one, have flown both Numerous times, and disagree with your assertion.
1. on TK even at a 2-2-2 configuration there's no way you'll avoid sitting right next to someone (unless it's empty) vs LX there are chances of having the throne, or the single seats on the right side, or the center seats which are more private than the ones on the left.
2. the TK lounge IMHO is very overrated (even for non Jews), its very busy, couldn't get a shower available, vs LX was very, very quiet, always able to grab an amazing shower (good idea to check-in for a shower right away), and I can enjoy coffee, soft drinks, fresh fruits, on the fresh air out side looking over the tarmac.
all this being said, this is my humble opinion based on my experiences, now this is not a Rashi or Tosfos & anyone is invited to disagree, I was just trying to help
@Traveler12 based on my experience.