The line that states:
The southern gate is held closed in accordance with an old tradition that the chokyong Dorje Shugden is waiting at this entrance for the day to come on which he will be allowed to enter the monastery, to succeed Pehar as the chief dharmapala of Tibet…
The fact that Dorje Shugden is waiting says it all.
But in this case, it is because of us that Dorje Shugden has to wait - we may not be as ready, some of the Dharma Seeds in us all may not have ripened just yet, the environment may not be as ready, the community as a whole, etc.
Karma needs the "right" conditions to ripen at the "right" time. Hence, it manifests.
There is no way that Dorje Shugden needs to wait and to be allowed - but unfortunately, in order to benefit us, we need to be ready in body, speech and mind. And I think it is more of the mental state, in order for us to be more receptive.
Hence, is it any wonder that High Lamas are playing their roles to bring about more awareness of Dorje Shugden to the world - promoting this Supreme Protector in a variety of ways, even out right banning HIM in order to propel him into the "center stage".
All these lead to creating the causes...and when the time is ripe, everything will be just as it should be.
Then Dorje Shugden WILL assume the role as Universal Dharma Protector of Buddhism.
The Time is ripening NOW.