First Blog... Why Group Showings?

After finally finding for one of my clients what looked to be a decent investment property I was poised to contact the listing agent to schedule a showing.  In the "internal remarks" section of the listing it was stated that this property was to be shown only to groups of potential buyers at 2 specified times and dates.  While I can certainly understand that there are  many reasons for this (it was vacant,though),  I still find that these group showings are uncomfortable for some buyers who don't like the pressure that that environment creates. Obviously by only scheduling 2 showings, this broker feels very strongly that this will be a fast moving piece of property.  To me, group showings sometimes suggest that the broker is lazy and does not wish to deal with the hassle of having to set up showings to individual clients.  Your thoughts?