Looks like the first hole (hole 71) at Copper Blow tried to shoot the moon and looks to have confirmed mineralization 100m down dip from previous drill intersections so thats as good as success as you could want, i.e. they still haven't found the bottom of it and provided the assays come back something like the assays from hole 57 (which was drilled earlier) then I would consider this is good news.
The second hole (hole 72) is a bit more difficult to assess whether its good news, or not, as there isn't much geologial and drill info around to put it in context but the different mineralisation and geology mean that they have something different to the traditional Copper Blow Magnetite hosted shear hosted IOCG. If the assays for hole 72 are good then this will be great news.
Edit - looks like Marketinfo beat me to the punch but a bit more information to digest....