It's important to have a balance of power to prevent one side or the other from becoming too powerful and, therefore, too corrupt.
That's nice in fantasyland but the reality is that we don't get bipartisanship with centrism, we only get dysfunction.
I think that dysfunction is the goal of centrists so that they can use it as an excuse to destroy the mutli-racial, pluralistic democracy.
It's no surprise that the overwhelming majority of "centrists" are mediocre white people who are threatened by the rise of a multi-racial, pluralistic democracy which removes their status as self-proclaimed moral arbiters.
In the end, most centrists are more partisan than either political party.
You may say you're a centrist, but you act like a partisan.