That's not the way I understand it. The ticket purchases are showing up in a broad category, created by Chase for its own purposes, which also includes the merchant type "Department Stores". I think you need to focus on the actual, very specific, merchant classifications, and ignore Chase's broad categories.

Merchant classifications are assigned by the acquirer, not by the merchant and not by the card issuer. Generally they will be the same for MasterCard and VISA, but American Express classifications may be different.