The widespread glee on liberal websites over this result should be enough evidence of that. They smell blood, and rightfully so.
There's a very simple and inherent contradiction between being a tea party states rights conservative who has a distrust and dislike of the federal government, and being a member of Congress. It's impossible to be both. Because in order to be good at your job as a member of Congress, you do things that contradict the tenants of being a states-rights tea party conservative. This is what Cantor was guilty of. He had become a member of the Washington establishment. That is a good thing for the citizens of his district and the state of Virginia, because he is in a leadership position in Congress, and can funnel money and power to his state. But it's that money and power that tea party conservatives want to eliminate. So in serving his party and his state, he is doing a disservice to his ideology. He had built up a level of seniority in Congress, which gave him a leadership position. That is good for his party and good for his state. But bad for his ideology, which is opposed to people becoming lifetime government employees. So by serving their ideology first, they do the country, the Congress, and their party harm. There's really no way around it. It's simply inconsistent to serve the country and this particular ideology at the same time. It's also difficult to uphold the 18th century principles of the founding fathers, who were mainly agrarian farmers and independent business men, and at the same time live in a 21st century industrialized country that is trying to be the leader of the free world. The goals of decentralizing the government, returning the power to the states, weakens the power and unity of the country and its standing in the world, and makes us susceptible to attack from other countries. Putin realizes this, and it's why he's making the changes he's making in Russia. While he's centralizing power in Moscow, we have a group who is hell bent on decentralizing power from Washington. That makes us vulnerable as a country.
So while you see "widespread glee" from liberal websites as a result, what you really should be thinking about is (1) The future of the Republican party when you have a group that doesn't believe in a centralized party; (2) The ability of tea party members to serve in national office when they're opposed to having a centralized government, legislating, governing, and actually performing their Constitutionally mandated duties, and (3) the future of this country to be able to defend itself against foreign powers in a world that is effectively centralizing and consolidating power into several large blocks (EU, Russia, China, Islam), while we have a group of people determined to divide us into a more decentralized, less powerful country.
No one should be happy or taking glee in this. It's not funny or entertaining. It's downright scary.