So the decoy construct in the month 2 op kit is what's in question. The solicitation has expected release of 6/25/14. Being that not all venues run their WoL events at the same time, is it understood that as of 7/2/14 (1week later) it should be accepted as modern age legal?

Generally speaking, yes. However, it always behooves you to check with your venue (or ROC event coordinator or whatever).