On the other hand this is sad because Mercury statechains require APO (or I believe some of the TXHASH flags that emulate APO -- or CSFS or LNHANCE) in order to work and that is one of the things I have most hope for in the current days of Bitcoin. But whatever, I'm happy if we can make any soft-fork if that is going to encourage further ones and CTV should probably be the first since it's so appallingly simple.