Market user interface may be misleading

In the documentation, it says that "Perennial allows for permissionless market creation —-- anyone can come in and launch any market they desire". Protocol-owned markets are created using the MarketFactory, and since only the owner of the MarketFactory can create markets using it, those are all trusted. However, the user interface for using a Market that is not owned by the protocol must be designed carefully. Since the Market holds the authorization for the user's tokens, a malicious Market can steal all of a user's funds.