Thanks! Muflax comes to this conclusion in that post:

your moral theories better be local, or you’re screwed.

I agree that local theories are better than nonlocal ones - although "local" is in some degree relative; local theories with a large "locality" may be acceptable. This isn't specific to moral theories, it applies to all decision algorithms.

This doesn't directly address my position that theories that only tell you what to do in some cases, but do cover the cases likely to occur to you personally, are valid and useful.