Geshe-la Gyeltsen was my first Lama. He is from Ganden Shartse, which has a very deep connection with our Protector. He is a very humble and conservative monk who keeps his practices secret. My guess would be that he does still rely on Gyelchen Shugden, yet is in the closet about it. To my knowledge, he has never spoken out against the practice. He is the type of monk who avoids any controversy.
He even mentions at some teachings that people should refrain from talking about the politics of Tibet while at the center.
Rainlute