Wether or not you share his moral beliefs does not seem important to me, you can recode chef-sugar if you think the way ICE works is fine and we should help them.
No need to re-code, it's open-source. It's already forked and under new control.
Really, Seth was only the "owner" of that code insofar as the mainline development was occurring on a project on his profile. The project now exists under Chef's control on their profile.
This move only generates some minimal pain for anyone using Chef-Sugar, and gains PR for Seth and his views. Presumably the latter was his goal all along.
I'm not sure if this is the case and I think this is a bad faith interpretation of the developer's goals.