I would be okay with that too ... but as @chdiza points out, that would hurt people who want an unbrewed mutt to coexist with a brewed signing-party.  On the other hand, an unbrewed mutt with an unbrewed signing-party would likewise conflict, so I'm not sure that's a valid argument.

I'm fine with either approach.  This just feels ... neater.  But it's your call. :)