I rejoice in the Dalai Lama giving Lamrim teachings and other teachings tirelessly. At his age, and with the amount of matters he has to look in to, it is really out of compassion that he is still doing all these as it involves a lot of travelling.
Personally, whether or not Shugdenpas are allowed to attend, I would not too. I do not wish to sit amongst CTA and their followers . Why sit and attend a Lamrim teaching, pretending to be all holy and nice while at the same time sending thugs to beat up an old innocent monk because he is a Dorje Shugden stalwart and belongs to Trijang Ladrang? Bottom line, i do not wish to rub shoulders with hypocrites.