Your article does not quote or cite the writers or creators of the show though?
But here: https://www.theguardian.com/tv-and-radio/2021/oct/26/squid-g...
“It’s not profound! It’s very simple! I do believe that the overall global economic order is unequal and that around 90% of the people believe that it’s unfair. During the pandemic, poorer countries can’t get their people vaccinated. They’re contracting viruses on the streets and even dying. So I did try to convey a message about modern capitalism. As I said, it’s not profound.”
And here's another one: https://www.nytimes.com/2021/10/06/business/economy/squid-ga...
“The stories and the problems of the characters are extremely personalized but also reflect the problems and realities of Korean society,” Hwang Dong-hyuk, the show’s creator, said in an email. He wrote the script as a film in 2008, when many of these trends had become evident, but overhauled it to reflect new worries, including the impact of the coronavirus. (Minyoung Kim, the head of content for the Asia-Pacific region at Netflix, said the company was in talks with Mr. Hwang about producing a second season.)