Nepal Bans Tibetan Assemblies on Dalai Lama's Birthday

http://www.voanews.com/english/news/asia/Nepal-Bans-Tibetan-Assemblies-on-Dalai-Lamas-Birthday-125091549.html

Why is Nepal "hating" on Tibetans & the Dalai Lama?
I understand that the easy answer is: China

But China's policy on Tibet has always been the same. Why has Nepal's policy towards Tibetans changed? I thought that we were very Tibet/Tibetan friendly. Certainly Tibetans with their carpet factories brought a lot of money into Nepal and even spawned a whole industry in our country. Apart from appeasing China, aren't we really going to be 'black marked' in the international communities eyes for actively 'hating' on Tibetans?