Dalai Lama would have never reached the level of attainment by being rude about Trijang one of his main teachers.
Would never and will never.
Indeed, the evil dalie's declared disdain for his two tutors and root gurus, Ling Rinpoche and Trijang Rinpoche, is a well documented and well established fact, as is his pathetic lack of attainment, or his total failure as a so-called Buddhist and human being.
For instance, as just discussed in a recent thread, he confessed the total inefficacy of his own prayers, as implied by his total disbelief in the power of prayer, while it is well known that the prayers of attained beings are fulfilled by the power of the truth.
Guru Devotion is the first topic covered before the start of the Small Scope, no one can get any attainments from such behaviour.
Which explains the evil dalie's thorough lack of any good quality, let alone “attaiment”.