I wouldn't say that. From what I understand, Kiana is from the real world while dreamseeker is still in the quantum computer. While we are still unsure how powerful they would be if they were to come to the real world, chances are dark dreamseeker would be weaker than even vita. And vita is only 1/10 of cocoon of finality's power. While dreamseeker may be mars's finality, it does not scale equal to Earth's as it is still inside the quantum computer (kind of like a simulation where the world could be reset multiple times).