I think an important question here is whether you view architecture as an individual or team effort. I've always viewed it as a team effort since it's rare for

I think an important question here is whether you view architecture as an individual or team effort. I've always viewed it as a team effort since it's rare for a single individual to understand all of the nuances -- especially a new hire -- of a particular application or domain space. I don't view a candidate's architectural knowledge in a vacuum to be a meaningful sign of anything as there is insufficient context to determine whether a proposed design is optimal or not.