I don't know, but as a matter of principle I want anything I believe about the BKs to be ratified by some 3rd or original evidence.
Robin is on the Brahma Kumaris Open Forum if you wish to ask him there. I thought the video was very good of them but I find them still a little too fond of the BKWSU to be purely objective, moreso the daughter than the Father. Did you read it ruffled feather for even it being too true to the history and was basically banned?
If we take the statement, "practise of seeing the self as God" and then look at the available publications that are available from that time, it does not match up. Their concept of God was either 'Infinite Divine Light', which they also say humans are superior to, or of deities. Perhaps they visualised each other to be deities as that was key to their religion. Likewise, I don't remember any mention of Shivohum. Other mantras, yes, but not that one.
Starring at someone and seeing weird things like face changes, is a game many teenagers play in their "experimenting with magic" or spooky phase. But perhaps this was also when dhristi started? Again, I don't know. Pure speculation on my behalf.