As to the article as a whole, I think she does well to identify a growing swell of support, I just don't think the "seas" will break right for it. The RINOs are clearly strong contenders for any "middle 3rd" party. And most here (FR) would likely love to see their backs.
The problem is twofold, they like it just fine where they are, because they draw independents and moderates to them, yet enjoy the support of conservatives faced with no other choices. And, the most vociferous types about needing a resolution (whether going elsewhere or getting rid of RINOs) appear to be folks found here (FR), and there's simply no indication there are enough of us to create a "Right 3rd" party.