I looked at the symptoms listed on that website. I have, like, many. Almost all. (Since there are a hell lot of AD(H)D symptoms listed there...)
But I was odd before the whole crawling-phase. So I doubt skipping that made any impact on me.
I do sports. Running (for fun) and dancing (serious) mostly.
I'm a good dancer.
I have observed dancing is one of the best ways to make shy people, clumsy people or awkward people physically less clumsy/awkward.
For some it has an effect on their social interaction. But because they suddenly carry their bodies different. They become more aware how to express themselves by body language and how to control their body by dancing.
No effect concerning that social/body language stuff on me. I wasn't shy/clumsy/awkward either though.
I'm the only autistic dancer I know. So, it may have an effect on other autistic people?
Well. It sure can have an effect on all other people if an autistic person with low-muscle tone and clumsiness suddenly has a better posture. They then probably think the autistic person is less shy and more open/friendly/dominant. That can make a huge difference.
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Autism + ADHD
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The trouble with having an open mind, of course, is that people will insist on coming along and trying to put things in it. Terry Pratchett