You also said he loses to Firestorm, which isn't true. They took 2 seconds off of puddle and then I believe you said he no longer beats characters like Robin and Catwoman. Let's be honest. Did it take skill to put the puddle down for 5 seconds and zone those characters out? No. They are trying to get rid of the brain dead aspect of this game. 3 seconds is fine.
Now, as a capt cold player, you have to think. If you're a good CC player, you'll be fine, but the players that just want to sit back and zone will have a tougher time. Supergirl did escape nerfs once again, but at least NRS is actively getting rid of brain dead mechanics. With Batman and Deadshot getting nerfed, Supergirl will finally be in the spot light along with Black Adam as they, imo, are in the top 3. But I honestly think this patch puts CC closer to top 15 than bottom 5. I mean CC vs SG is 5-5. CC does well against everyone but Green Arrow. It's the only MU where having MU knowledge is useless.