They are very much stopable, It's just that they usually fill the board and clear most of yours turn 1 and if you didn't draw monster effect negation on your first turn then you are boned.
Also by saying “Physics and Flying Fish are getting KOG” It’s like saying no decks made to KOG under cyber angels or Sylvans or any other op decks. There always been rouge decks that break the meta. So you’re point is invalid.
Bahaa
Ren
