[Standards] XEP-0277 to include attributes of "atom:feed" element

Greetings. XEP-0277 is meant to deliver RFC 4287 (Atom format) over XMPP. However, as with Atom Activity Stream, only elements "atom:entry" are delivered. So, elements "atom:subtitle" and "atom:logo" of element "atom:feed" are neglected. Could we utilize element "pubsub:items" to store that missing data of element "atom:feed"? <items node='urn:xmpp:microblog:0' title='The Journal of Romeo' subtitle='Of the affairs of the Capulet and Montague families.' logo='http://montague.lit/logo.svg'> Regards, Schimon