Bull. Democrats don't say or do anything without permission. There is a reason she's doing this and it's not to hurt democrats.
I'm sure she would agree with you.
My own take is, regardless of what her reasons are, which I don't care in the least about, the net effect is to screw up their process by keeping lots of marginal candidates in.
She pretty much ended Kamala Harris's chances with one debate response, I look forward to her ending a few more. Yang, Tulsi and Williamson are all ruining it for "the serious candidates".