The problem is the need to release yet another stealth 5.2.3 tarball without going through our normal release process.
As I said above, though, it's not really my decision. If the 2.2 release group as a whole wants to include it and if the OCT agrees to another stealth 5.2.3 tarball, we can do it.
What else doesn't work with Opera? If we still have Opera issues I personally would prefer we not go through the 5.2.3 stealth tarball shennanigans again and concentrate on making .LRN work well with Opera in the future.