I read the slate article just yesterday, the latest diagnosis doesn't sound well supported, and as if it's just a duplicate of issues from other somewhat established diagnoses.
I certainly have an intense 6 year old and at age 4 really really pondered whether help was warranted. But otoh in school she was pretty ok, so that always tipped us to the side of wait and see.
We've seen a slow but ever hopeful shift towards logic and reason and she is on less of a hair trigger.
Probably we are getting better at dealing, seeing things coming to a head and redirecting, etc.