I'm not sure, I think there is value in pushing through friction regardless of if you are introverted or not. One thing that is common to all humans is that loneliness correlates strongly with lack of satisfaction in life and being less healthy.

Before we talked as much about introversion and extroversion, people felt more obligated to do certain social events that they can more easily reject nowadays. That does mean it was uncomfortable and they had to push through friction because it's draining for introverts to do social events but being there also helped with making group of friends and staving loneliness. I do think this change in mores is one of the factors that contributes to the so called loneliness epidemics nowadays.