There should more Tibetans to speak against the ban on Dorje Shugden. The stigma of going against the Dalai Lama, the emanation of Chenrezig weights heavily for most Tibetans hence, you will not hear much. This is not to mention the lack good leaders who would look at everything including the Dorje Shugden ban objectively.
Hence you have Lukar Jam, a breath of fresh air and someone who would look at the whole picture and have a solution for the Shugden problem but he is a threat to the powers that be and hence, he was not even allowed to run for elections. So, exactly how popular he was, we will never know.