Regarding allegations that Pabongka Rinpoche was a sectarian Lama who presided over the destruction of the monasteries and sacred images of other traditions...
"Another thing is that some Tibetans and others severely criticize Pabongka Dechen Nyingpo because he practiced Shugden, making him out to be some kind of demon. However, Pabongka Dechen Nyingpo wrote incredible teachings on sutra and tantra; on Heruka, Tara Cittamani and many other topics.

All these amazing teachings were written purely from his experience. So it's impossible that he can really be some kind of evil being, as those extremists accuse him of being. There's no way he could have done the negative things they say he did."

Regarding his realization...
"My root guru, His Holiness Trijang Rinpoche; Pabongka Dechen Nyingpo, His Holiness the Dalai Lama's gurus root guru; His Holiness Song Rinpoche, from whom many of the older students received the initiation of Shugden; and the previous incarnation of Gomo Rinpoche, who has a strong connection with Istituto Lama Tzong Khapa, here in Italy, all promoted the practice of Shugden. They were all aspects of the Dharmakaya."

Regarding Kopan Monastary giving up Dorje Shugden Practice...
"This was done for His Holiness (The Dalai Lama). This does not mean that Pabongka Dechen Nyingpo, His Holiness Trijang Rinpoche, and His Holiness Song Rinpoche have made mistakes. It does not mean they are wrong. Nor does one have to look at the Protector as evil. For us ordinary people it is difficult to judge, because we cannot see these lama's minds.

Another side of the teaching is that it is mentioned that the protector (Dorje Shugden) is an Arya Bodhisattva, a manifestation of Manjushri. So, then, there is also the risk of our creating very heavy karma in that context (by criticizing or abandoning this practice)."

Source: truthaboutshugden, February 12, 2009