It answers the question with a long version of "no."

It generates other questions.
I looked for the corrected CC CRs (hel
lo alliteration!) before Christmas and again today, and found them today. Thanks.
I'm glad to know those other changes will be in place, though I certainly won't buy a new version of the book. Will the changes be available on the Internet? I mean legally.
(After all, I don't need the templates, I can do simple math on my own pretty well and thus can distill racial stat modifiers, and I can actually create my own reasons for inserting beholders, aranea, bugbears, et alia. I know, it's an odd ability.)
CC2 CRs out of whack include pretty much anything that casts spells as a sorcerer:
Arcane Symbiote: casts spells as a 4th level sorcerer with Silent and Still meta-magic feats applied to all spells. Has special abilities and d8 hit dice. Listed as CR1 or +1 to host's CR, not CR4 or higher as a 4th-level sorcerer with special abilities would rate.
Blood Crone: casts spells as a 17th-level sorcerer. Really, really smart, wise and charismatic. Special abilities. Listed as CR15. Whee!
And there are others, like the Blood Sea Jellyfish, that represent physical threats and are rated low:
BSJ: 3 hit dice. Vermin. DC 17 2d6 Dex damage poison (while swimming). 120' movement when it's important. AC of 7, admittedly. Listed as CR1.
Bonewing: 8d12 hit dice. DC 13 1d6 STR poison. Undead + extra immunities. Flight w/ INT of 6. Listed as CR3. (Plain undead, like skeletons, tend to have CRs equal to half their hit dice - and zombies only get partial actions).
Those two aren't as bad as pretty much anything listed as casting like a sorcerer, but it still doesn't really work. It's true that there are lots of very good monsters that
do work and the CC2 is certainly much better than CC1. Both have been recommended buys for all my friends and will continue to be so.
- Ket