I disagree. I think that, as the Main Page, and this Main Page template in particular, are the most visible parts of the project, a "director" is needed here. Management of this template needs to be centralised and controlled, or we'll end up with disorder. Disorder that'll be visible to anyone visiting the site.
If we *are* going to let multiple users control the Feature template, then I must suggest that it be limited to sysops only. The bare minimum for being in control of such a visible aspect of the site should be sysophood (i.e. the trust of the community)... I would stipulate that users such as Anthony (who thinks [[13 Colonies]] is featured-article-quality) should never be allowed to choose it.
Else we'll end up with featured articles like [[Andy Dick]] or [[Set and drift]].