The Evo Triangle has been ruined by various publications over the years and it has been heavily policed for a very long time as a result. As it happens, those three roads are a long way from being the best in the area so that's been fine, however the average speed cameras and more widespread realisation that it is heavily policed have led to people branching out to those other less-well-known roads and now those are all ruined too.
From a local perspective you can see why they have put heavy pressure on Police and local government - they are there living a relatively quiet rural life in a national park and there's all these idiots on loud bikes and in loud cars tearing it up day and night. Killing themselves and others in the process quite frequently as well.
Still, if you
are relatively local you know what's what and can still enjoy some of the more out of the way places