Burma is a neighboring country. As a government it is very normal to have friendly relationships with neighboring countries. But maybe time will change this. As the situation is developing and the Thais have to change their policy from time to time accordingly. The media suggests that the Thais pressured the KNU leaders to reach a deal.
Some Asean countries are disappointed and discouraged.
I'd urge the Asean leaders to push on and try to give as much pressure as they can to force the Burmese leaders to come to the negotiating table for reconciliation and political settlement with ethnic groups as well as democratic forces. They are the military dictators. They are in the same boat. You can't judge them by their activities or their speeches.