Now this is great. This is travel literature. For a variety of reasons, which I'll illuminate below:
1) She's speaking of a place that has disappeared. The Tibet she has traveled was razed to the ground by the Chinese in the 1950's, what we have left are only travelers accounts, myths and cheap reproductions.
2) She talks of the miracles she witnesses - the thought projection, creation of doppelgangers, telepathy, internal combustion and other mysteries with some skepticism and common sense. And she reports many of these things as first hand experiences, not just relaying stories.
3) She interprets what she sees without prejudice and with (for the time) a fine balance of common sense skepticism and open-mindedness. You can't ask for more.
4) She illuminates you as to the 99% of Tibetan Buddhist dark magic and beliefs that somehow escaped export to a gullible western public. It's worth knowing, if only so that you can laugh in the face of the next "enlightened" white yogi who tries it on with his chanting of the "on-no-ma-ne-pad-me-ohm..".
And if she's somehow exaggerated or embellished her tales and interpretation of the events, who can blame her? It makes for a far far better story.