All these channelled information - better not take their claims
too seriously (such as being from Guan Yin, Buddha, 'The Source',
whatever). Many spirits will use the names of great masters to
transmit their own messages, but it does not mean they are truly
Buddha, Jesus, and so on. (And they are not necessarily right or
have any real clarity all the time) They are just spirits using
their names. The spirits' true identities are unknown. It's
definitely much easier to say "Hey, I'm Buddha and I got a message
for you" than to say "Hey, I'm an unknown spirit from an unknown
universe giving a message for you" (then people will be doubtful
and go like, "what? who the heck are you" etc), so they just pick a
name out of convenience.
This is not very different from Taoist mediums being a medium
for certain well known gods, deities, Guan Yin, etc. They are
spirits (may be good intentioned for all we know) who use the names
of those masters to communicate, help, do something. But this does
not mean they are truly those masters themselves.
So far those channelled information rarely, very rarely have
much clarity about dharma. As Simpo/Longchen himself who was once
deeply involved in the new age circle commented, so far the only
channelled information that has even much clarity about non-dual is
Aaron (deepspring.org). Aaron is a deceased master whose immediate
past life was a Thai meditation teacher, and is now guiding people
through Barbara. Though I still doubt there is deep clarity about
anatta and D.O., haven't really studied his teachings.
p.s. Simpo was able to discern this (that most channelled
information has little clarity about non-dual, etc) after having
gone through the stages of enlightenment himself.
Also, in dharma, it is best we don't rely or trust too much
about the information we receive from external source. Personal
direct experience and insight from meditation is much more valuable
and transformational, imo. And there won't be doubts about it
because it is not merely second-hand knowledge.
what happened to Simpo? Is he still posting in this forum?