I do suspect that she is going to find the going tough once she gets into the House. Somehow I don’t think the experienced members of the current progressive caucus will just fall into line behind her plans and bow to her as leader, which is really what that bit comes off as what she is expecting to happen.
And IF she does advocate for holding the rest of the party, including other progressives who do not sign on as members her hoped for “sub-caucus”, hostage … give us what we want or we prevent you from doing anything … then she would be horrible both for the party and the for the country.
At least pretending to have a little humility and being open to to idea that maybe, just maybe, you have things to learn from the progressives in the House who have been at it for a while, rather than announcing how you will get them to change things before you even arrive (because of course they have been doing it wrong and you know better), would likely serve her career well.
That sort of posturing can end up getting you iced completely by all. It portends an increased probability that these 15 minutes of fame may be the only ones she gets after all.
But she can still learn. Maybe she will.