I agree Perl 6 is something of a moving target, and for commercial software that's supposed to be stable it may look weird that a syntax definition file keps changing. But this being a community effort, having experimental status support might get more people interested in the project and ultimately contribute towards its release.
Just in case you're not aware of this, there are decent syntax files for emacs and vim in the Pugs source tree; these have helped people write over eighteen hundred tests in over seven hundred files, all written in Perl 6. So far, everybody's quite tolerant to the incremental updates to the syntax definition files. I'm not a Komodo user myself, but I would love for IDEs to have support for the language before it's officially released.