Having a document subtype and template is my "workaround". The issue is, I do not want primary content, only attributes and maybe attachments. Having a doc type of a form (something like a document where it is by definition no content, so users wouldn't even have the option) would be easier to work with, and something I think is missing in Windchill. Also, if we can get PTC's attention, forms would likely have different kinds of relationships to other objects than documents have being they usually behave differently in business processes than typical documents.
So, anyone using documents as forms and finding that there are shortcomings with the document's behavior is who I am looking to connect with. Maybe you are one of those people?