It looks like it. It also appears as though that she may have a deeper connection to Xehanort than we realized (she may have even been one of the children that he was experimenting on). Also, I'm starting to speculate on whether or not Kairi's grandmother is actually Vor or Urd from KH:Dark Road(which would only tighten the connection if Kairi was actually related to one of Xehanort's fellow apprentices). And man, was Kairi pissed at the end of the video. Here's a translation of what she said to the hooded figure:
"It's your fault my fate was changed... and because I wasn't strong enough... everyone got hurt, Sora too... and now you're right here in front of me, so even if this is just a memory or an illusion... I'll never forgive you!"
Edited by Kagomaru, 18 June 2020 - 02:28 AM.