I'm not really happy that he used the word spastic. Calling someone that when you're not speaking in medical terms is really ableist. I am surprised so many people don't even know that. Just ugh. It's often used to talk about people with CP because we can be "spazzy" by startling easily and many of us have spasms in general. It's very hurtful for many PWDs.
It's not an acceptable insult.
Don't say it.