Technically, even Despecialized is not a fan edit - that would be reserved for something like Adywan’s versions that actually alter things, rather than simply rolling them back. (And it’s well known that one of his footage sources is the same source underlying the TN1 releases.)

And I don’t think it matters what the law is in the Czech Republic when it comes to OT - the site is hosted and maintained in the United States, and any theoretical Czech license holder can’t approve the use of material outside of the Czech Republic (unless they also hold the license for wherever else it is released).