I just checked the IG FAQ, and it has the question about Valk templates, and they are listed as "non-blast" ordnance, so GW has specified that there is a third class, although the BRB does not differentiate very well,
Thus there are
-Ordnance (Shots-- for lack of a better term) only IG and BA thus far.
-Ordnance Blast
-Ordnance Barrage
As the FAQ for IG does address non-blast weapons, I guess we can see that issue is addressed and taken care of. BA lose the Blast and/or barrage for their vindicators in the new codex. It makes them less killy for infantry, but still quite effective against other tanks.
John M.