I voted Yes, I think that in a game like Rejuv where battles are harder than normal, the fact that you can be freeze for 5 turns, when facing a though opponent, is really game changer (or also if you freeze the opponent the game is far easier).
For example, when I was facing Mewtwo in Reborn with my Fighting Monotype team (what a horrible matchup), it Freeze my last Pokemon with Ice Beam after I took One Hour to finally have the best opportunity to win.
So yeah : Ratio Freeze.