I thought the `do loadManifesto' syntax was discouraged in favor of 'loadManifesto()'? I've read jashkenas say he wished that hadn't been introduced in the firs

I thought the `do loadManifesto' syntax was discouraged in favor of 'loadManifesto()'? I've read jashkenas say he wished that hadn't been introduced in the first place, and now I see it in his code.