The title reads like a category error. Yes, expertise consists of tacit knowledge, but that doesn't tell you anything about whether deliberate practice is the way to acquire it or not. It only tells you that memorizing text won't get you there. To the extent that it's not a category error, it's a tautology: arriving at the office is more important than driving to the office, making a milkshake is more important than running the blender, and acquiring expertise is more important than any particular technique you might use to acquire expertise.
At the bottom Chin says what he thinks is the way to acquire tacit knowledge: apprenticeship. He should have called the article "Apprenticeship is more important than deliberate practice," which hinges on precisely what you mean by "apprenticeship" and "deliberate practice," either of which can be defined in ways to make the statement true or false.