It is like rubbing salt to wound. The article reports that the Dalai Lama "expressed his concern and anxiety over the growing division that is happening among the exiled Tibetans. He said that moral values are degenerating in the community".
The fact is as Michaela pointed out. The Chinese annexation of Tibetan did not create the disharmony the Dalai Lama spoke about. Despite living under strenuous conditions, we see that from 1959 to 1996, the Tibetans in exile lived as one people but with differences due to the region they came from and also the different Tibetan Buddhist schools they follow. It was never a problem.
What split the people are in fact the actions of the Dalai Lama which are enforced by the CTA. The Gelugpa and the Karma Kagyu are the largest and second largest Tibetan Buddhist sects and jointly they account for approximately 60% - 70% of the entire Tibetan population both in exile and also the Tibet Autonomous Region (TAR). Therefore when you split these majority along strong religious lines, you in fact split the entire country.
The Gelug is now divided by those who chose to adhere to their vows made to their Teachers never to abandon any of their practices including Dorje Shugden, and those who chose to toe the Dalai Lama line. The Karma Kagyus are divided by the presence of two separate heads of the lineage - Karmapa Ogyen Trinly endorsed by the Dalai Lama, and Karmapa Trinley Thaye Dorje who was recognised and enthroned based on Karma Kagyu tradition, by the Shamar Rinpoche.
For good measure, the Dalai Lama splits the Tibetan people by confusing them with what the 'Tibetan Cause' should be - Rangzen or independence or Umaylam which is autonomous rule under China. In reality, both are just concepts and neither are any way close to being fulfilled. Therefore this choice was created merely as another fault line.
How can the Tibetan people or anyone survive such determined and wilful measures by their government to divide them? So, do we really think the Dalai Lama wants the people to foster Tibetan unity? Clearly not. A divided people is more easily handled by a government that is failed and corrupt.