From my perspective, this article is not suggesting people try to be someone else.

It reminds me of the popular book "Quiet: The Power of Introverts in a World That Can't Stop Talking‎"

In that book, the author suggest that introverts fake extroversion in short bursts.

As an introvert myself, this is something I've done for a decade. It's tiring but pays off. Sometimes we introverts miss out on great opportunities because we don't stretch our comfort zone.

I think this article is good advice on small ways for introverts to put themselves out there and "fake extroversion".