You are referring to the spirit of cooperation, etc. between churches, I take it. Yes, it probably is significant to some degree, but the talk had been about union, and that will take MUCH more than what we've seen so far. That goes for talks between branches of the same Protestant denominations, too, so imagine how difficult it really will be to bring any of the major Christian denominations into real organic reunion with each other. Plenty.
However, whenever there is something promising to point to, such as simply a joint statement on the meaning of the sacraments, people get excited and think merger is right around the corner. I have to say also that the heads of the respective church bodies, their spokesmen, and the clergy have a way of talking overly optimistically whenever this kind of thing occurs, so the laypersons' view is going to be affected by that.