As long as they did the moonsighting according to sunnah, that is all that matters. My eid is Friday, eid mubarak to everyone who is celebrating whichever day.
Brother that is incorrect. If you look at the graphics on moonsighting.com it is not possible to see the moon in your part of the world.
According to the sunnah, 30 days must be completed. Other countries follow the sunnah slightly differently, they accept a global sighting, there is nothing wrong in that either, its a different interpretation with different justifications.
Just because there is no ijma on the matter, doesn't mean one has to be wrong.
The controversy comes in where we question the credibility of people who claim to have sighted the moon. This happens regularly in Pakistan and to reject someone's sighting regularly is to question thier credibility. In this instance, the hilal Committee should go with the people who have a track record for this and try to see the moon alongside them.