a short list of recent "isolated incidents"

In recent times, the media has reported various examples of bad/inappropriate behaviour management (systemic failures) in services and supports for autistic people. These include:

Note that Graeme Innes says 'appalling' cage practice is not a one-off, called for an inquiry into the education of children with disabilities. Concerns have been raised over numerous instances: Children with autism caged and abused at school.

And here's video of Aspect commenting on the Canberra 'kid in a cage' events: http://www.abc.net.au/news/2015-04-03/investigation-underway-into-why-autistic-canberra/6369770 

Research suggests substantial agreement over behaviour being a major issue in schools: Results of the Australian Autism Educational Needs Analysis