Do you have a source for this? I'm pretty sure the license is called "Wizarding World" to encompass HP and its extended universe, and the license is directly from Warner Bros and not from the parks. I found the original press release for the HP sets in 2018 and it says "LEGO Systems, Inc., in partnership with Warner Bros. Consumer Products, announces that a collection of LEGO® sets inspired by the Wizarding World". Universal also gets their license from Warner Bros. Consumer Products for the parks, but that doesn't mean the sets have to be related to them in any way.