This author is deeply deeply misunderstanding other humans. They are applying a "it worked for me, therefore it works for all" mentality. And worse yet, coming to the wrong conclusions. You do not need to be an extrovert at work to get ahead. Full stop. Does it help in some ways? Sure, but you can be equally successful as an introvert as long as you are able to communicate clearly when needs demand it. Plenty of exce…
Success is about the skills, contributions and value you bring to the table, not about how much you talk
Also particularly in large organisations, work is not a perfect information game - there is no easy way to assign a fair / public a "value" to people to let you compare two employees. Most people will need to sell themselves or have other people sell them to get noticed, and some degree of social bonding can go a long way with this.