Earlier quoted context omitted.
I don't think this article is necessarily arguing for centrism. Being able to understand the perspective of all sides of an issue doesn't mean your own views will necessarily fall directly in the "middle" of those perspectives. It probably does mean, however, that you're less likely to demonize those who disagree with you.
There are no sides, and certainly not just 2 positions to have on issues. The rest of the world is a lot less binary than US politics as well. I live in China and I smirk painfully at people in a biparty telling us our monoparty is oppressive and reduce variation of solution (having only 2 mutually exclusive choices is not twice as good as only one, it's like 10% better if you consider there are 10 choices of solutio…
For what it's worth, the US actually does have more than two political parties. It's just that our first-past-the-post election system ensures only two of them are able to effectively compete on the national stage at a given time.