Well if i understand it well (and dont get me wrong, i'm very active on the exchanges and almost only looking at ETC) CETH is the solution for the problems what ETH had, ETC is not the solution for the ETH problems.
When the hacker strikes, ETC is gone. ETH took the solution to put a hard fork and fix it, the issue ETH had, is still inside ETC (correct me if i'm wrong please).
So in short words:
ETH is fixed, but got a bad name because of the fork.
ETC is not fixed and still got a hacker/wale what can strike and kill ETC.
Exchanges can not cover ETC forever, if CETH is the solution for all the problems it can goes very bad for ETC.

CETH is the fix for the ETH / ETC problems.

Edit: if i read the FUD below the CETH message on reddit, i dont see a bright future for CETH xd

But again, correct me if i'm wrong. Till that time ofcourse i will be active on the exchange - ETC.