Batch Update Via Profile: allow profiles for type "contacts" and "individuals" to be used

Batch Update Via Profile issue:
When batch updating event participants via profile, only profiles that contain only fields of type "Participant" can be used to update. A great improvement would be to allow profiles with "Contacts" and "Individuals" to be utilized as well.

STEPS:
See participants of an event: /civicrm/event/search?reset=1&force=1&event=<EVENT_ID> ->
Select all, select "batch update participants via profile" ->
/civicrm/event/search?_qf_PickProfile_display=true
You can only pick profiles that contain only fields of type "Participant". It would been really good if we could use profiles with "Contacts" and "Individual" fields too.

At this URL: /civicrm/admin/uf/group&reset=1 under "type"
If the profile contains fields other than or in addition to Participant-related fields, the profile will not show up in the "batch edit" drop down menu.

This also occurs on the Demo site.

Thanks!
Andrea