It's about as unscary as the various disability and accessibility laws in the UK and EU. They make lots of demands too and have scary consequences for inaction, yet hardly anyone follows them to the letter and I've not heard of anyone getting punished either (although I'm not suggesting no-one has, it's just not common).

I suspect most companies, other than those with the budgets and public visibility to run scared, will just ignore this law until it becomes a problem. Indeed, they haven't done a good job of promoting it either - it's been in a few news stories.. woopty woo, I bet the majority of webmasters haven't even heard of it.