I don't agree with this generalization for good communication "In my experience more extroverted and “chaty” engineers have it better on average."
Often times we conflate loud communication with good communication. In my personal experience there are lots of verbose individuals that are poor communicators.
Either is fine IMO. I'd personally be more interested to have the person walk through their decision process than seeing the end result. Always fascinating to have someone explain it. If they copied and pasted it and hadn't been forthcoming it'll be obvious once the discussion gets to the meatier parts.
Do you thing the tech landscape today would have allowed for nebula to be born? Lots of companies now have strict IP agreements they have team members sign.