But that's not talking about suitability to architect solutions or write code, it's talking about the surrounding process infrastructure and making it more approachable to people so that people who
are suited to software engineering have a space where they can deliver on it.
When businessses moved towards open offices, this infrastructure change made SWE roles more approachable for extroverts and opened the doors of the trade to people not suited to the solitude of private offices. Extroverts and verbally collaborative people love open offices and often thrive in them.
That doesn't imply that extroverts weren't suited to writing software. It just affirms the obvious fact that some enviornments are more inviting to certain people, and that being considerate of those things can make more work available to more people.