I don't know about the rest of England, but near me, more freestylers have begun, a couple of people from Birmingham have got into contact with me about freestyle. They've begun now and, although they're at a very low level, that's how everybody starts, they could become decent freestylers.
It's a lot easier to track how many people stop freestyling than people who begin. When people quit, they make it public (by a final video, a post on here or Facebook,etc) but obviously freestylers starting out don't necessarily make this announcement.