http://www.irrawaddy.org/burma/burme...thai-coup.html

Burmese Politicians Comment on Thai Coup

“In Thailand, once the country’s situation returns to normal, the army gives power back to the people. In Burma, it’s been different,” the NLD member said.

She urged the Burmese government, as chair of the Association of Southeast Asian Nations (Asean), to respond quickly to the Thai military’s takeover last Thursday.

“They still have failed to do so. I think they have delayed their response because of the army representatives in Parliament,” she said. Twenty-five percent of seats in the Burmese legislature are filled by unelected military representatives.
http://theconversation.com/muted-res...-options-27100

This piece captures many key points succinctly.

Muted response to Thai coup hints at other nations' limited options

Behind the scenes, however, things are rather more complex. States in southeast Asia are acutely aware of the ways in which developments in one of them can have sudden and dramatic knock-on consequences across the region. The seismic economic and political events of the 1997-98 Asian financial crisis are still etched firmly in the mind.

Within ASEAN, a division is growing between the more developed, globalised and liberally oriented ASEAN states and those that are underdeveloped and authoritarian. Indonesia and the Philippines have rather different perspectives on events in Bangkok than Vietnam and Myanmar.