To be clear, she did not predicted that "war will continue as is". She said something of the lines of "Of course there will be bigger war in Ukraine. I hear about army moving to the border from all sides. This is not exercise, no, this is not how exercises look like". That was paraphrase, not quotation. But specifically she was guessing based on what she heard about units movements.

And also, as for mass murder, knowing enough about Russia army behavior in past conflicts, it is not like it would be reasonable to expect them to not commit at least some mass murders.

Military not knowing as in "some low level unit" being clueless is perfectly plausible. Military as in "no one in leadership had any idea" is not really.