Neither is anything that would support him being described as a “centrist”.

"Neither side is 100% correct and both viewpoints are necessary for a functioning society or, in this case, company. A company too far to the right may be slow to react, overly hierarchical, and untrusting of others. In contrast, a company too far to the left will constantly be changing (deprecating much loved services), over diversify its interests (ignoring or being ashamed of its core business), and overly trust its employees and competitors."

This is exactly a centrist position.

Now you can reasonably argue that on balance the document isn't centrist. I think you're wrong, but reasonable people can disagree.

That there isn't anything in there that would support a description of centrism is trivially false.