Headscratchers / Wallace & Gromit's Grand Adventures

• Why would the deed to the Prickly Thicket Golf Course actually mean anything? I think there are laws in Britain stating that if the owner of a property doesn't enforce his rights to remove trespassers on that property for a fixed period of time, he loses the right to evict trespassers. After close to 400 years of no enforcing the laws, the town that was built on top of that course has exceeded that limit by a considerable margin. Also, wouldn't that deed mean that the club (and by extension its four members) owe the government 400 years of back taxes for the entire town?
  • I can't come up with an in-universe explanation for the former, just that deeds work differently in fiction and the revelation that the deed-holders had long since lost the ability to evict people would have been an Anti-Climax. As to the latter, possibly, and perhaps Wallace could have mentioned it to Duncan by way of consoling him.