I was interested enough to view many of the videos. My interest isn't necessarily to see if it's actually an interdimensional portal (IDP) or if it's just acting. Although, that should be taken into account. My interest is the message and what that message may be hiding. There is a modus operandi for most higher level messages that are meant to mislead in some way. That is what has been called the "1% lie". To get people to believe a lie it is best to wrap that lie in truth. Thus the message resonates with the individual and the lie contained within is more easily accepted because it kind of slips through.
Anyway, I'll come back to that. I wanted to quickly address the question of if it's actuallly a IDP or just acting. I can't say with complete certainty, obviously, because I'm not the person doing it. But I can look for clues that will change the probability one way or the other. Besides the girl looking to her left quite often there are other behavioral quirks that happen across many of the messages. The one that stood out most for me was when a particularly strong point is given the girl will smile, nod her head sharply, and say "hmmph". I have not met many humans that do that so it stood out. And since the interdimensionals are merely deceased humans it's fairly safe to use that as a gauge.
Now back to the meat of the messages. The problem, of course, is that I can't say for certain that I know the structure of what comes after our life on earth. So, in essense, it comes down to belief. Now, I realized that in order to fully face infinity I would need to get rid of beliefs and simply keep the ideas as possibilities. That way nothing could contain me. Nothing could limit me. However, there is one belief that I hold that is near 100% probability. I allow this belief because it does not limit me and it makes sense to me. That belief is that there are levels beyond the one above us.
One place that this belief is written is in the Nag Hammadi. http://www.gnosis.org/naghamm/gosthom.html
"11. Jesus said, "This heaven will pass away, and the one above it will pass away."
One of the main beliefs non-religious people were given was that there was nothing beyond the physical. Science has been used to further this belief. Thus the fear of death many non-religious people hold. For those that seen/felt beyond the physical, religion has created the fear of death by way of rewards and consequences. If we are to believe that there will be some sort of shift to the next level and the same entities that enslaved us here wish to do the same there, then we can postulate that they would try to get us to believe there is no level beyond the one above (the one they occupy).
I see that underlining theme in these messages. I also see how the word "soul" has been associated with the lower emotional center. In my own adopted terminology, "soul" is the light body (5d body). That is, the level beyond the one above us. If we are to be controlled in the next level then it's imperative that "they" get us to believe there is no soul or prime creator. It's imperative that we believe that the physical (etheric included) is the -end all, be all- of existence. Why is it imperative? If we believe that, then the entities already over there can present themselves as our authority since they were there first. For those not fond of "authority" they can present themselves as our teachers or guides. Either way the idea is the same. That is, for us to look outside ourselves for the answers contained within.
That's not to say the messages are all bad. Obviously, we can resonate with the message of oneness and equality. And being who we really are that would resonate quite loudly, so that the "1% lie" can get through unnoticed. As with most of these "higher" messages it is meant for people that are at a certain level. For many on NR the ideas contained within these messages have already been explored. And as with all such messages the people that really could use them will never hear them. For I know that even with the subtle twists these messages can help many people progress beyond where they currently are.
In conclusion, this is only my personal take. And even that I can't hold as 100% conclusive because I must allow for all possibilites so stagnation or entrapment isn't possible. In other words, don't take my word for it. I'm just giving my own perspective to add to the mix.