strange (to me, anyway) loading of upcoming VS31

Off to St Lucia on Friday (23rd) in P/E so thought I would do a load check on V-Flyer.
Really weird. Y is completely sold out, but W and J are fully open i.e. 9+ available in each.
I know this was slightly heretical, but I thought the V-Flyer load checker was 'faulty' :0 . However, I went into the Virgin website and this was confirmed by doing some dummy bookings.
Does this seem strange to you? Could there be some of those mythical 'op ups' due to overbooking in Y? y) Not holding my breath on that one though !
I have never seen such a disparity between cabins before - maybe it is normal for that route as I have never done it before?
Just idle curiosity.
Really weird. Y is completely sold out, but W and J are fully open i.e. 9+ available in each.
I know this was slightly heretical, but I thought the V-Flyer load checker was 'faulty' :0 . However, I went into the Virgin website and this was confirmed by doing some dummy bookings.
Does this seem strange to you? Could there be some of those mythical 'op ups' due to overbooking in Y? y) Not holding my breath on that one though !
I have never seen such a disparity between cabins before - maybe it is normal for that route as I have never done it before?
Just idle curiosity.