Elizabeth Warren basically sold her soul to the DNC to become senator. Don't be surprised when she parrots party platform BS even when she should know better. That's literally part of her job now. Thanks Obama (no really, he should have made her head of the CFPB, she'd have done far more good in that role than she will ever do being a mediocre senator).
My recollection is that her state was held by a republican Governor at the time, so putting her on the CFPB would have reduced the Democratic senator count by enough to threaten other legislative priorities. But I might be misremembering
