Ezra Klein doesn't think so:
I feel for Karen Ignani, head lobbyist for the health insurance industry. For the last year, her group has been by far the most cooperative of any major industry stakeholder. [...] The big question right now is whether the focus on the insurance industry refashions the insurance industry into an enemy of reform. Many in Ignani's organization want her to dump $100 million into an aggressive ad campaign that will return some fire.
But I don't think she will. Insurers might be taking a few more hits publicly, but nothing has changed for them. As Ignani herself says, they've already signed onto the set of consumer protections envisioned in health-care reform. There's no further cost to having the president talk about the unsettling practices that led to those protections.