IMO, Of course she can be a plant. Who takes a job that you know nothing about? Then the first thing she wants to do is make changes. I've seen her in other videos talking this kind of crazy talk. Once she's solidified her position, she'll start hiring/recruiting other like-minded devs and change the culture of the project/business. Which changes the focus and goals of the organization. In this case, whether the blockchain is for a storage of value (money transactions), or a storage of data (a database).