CollectionView viewComparator option for custom collection view sorting

See discussion here: https://github.com/marionettejs/backbone.marionette/issues/2056
Is this a marionette convention I just missed?  Just curious, because in the case of a a lone if...else where each has a single statement, the complexity is the same or more for the "always assign" version.

For example, with the current code

1. An if comparison is always done
2. A single assignment is always done

The flip-case would be

1. An assignment is always done
2. An if comparison is performed
3. (potential) A second assignment is performed.