I think whether it is good or bad depends.
1) The good side is EB2-C can get more Spillover in July-Sept. Eventually
EB2-CI might get biger movement by this Sept. Because bigger movement in
early months may result in more EB3 porting cases getting in line and they
can use this year's visa/spillover. If they are not allowed to get in line
until July, most likely they can't be approved by Sept due to 485 processing
time.
2) The bad side is the approval for the cases with PD in Aug/Sept 2006 will
be delayed for a couple of months.