I'm not convinced. I skimmed the article and the key piece of evidence seems to be a linked bloomberg chart that shows corporate profit margins spiking up recently. However, if you go to the source data[1] and zoom in, you see a different picture. Specifically, profit margins were increasing the most between Q2 2020 and Q2 2021, but have since stayed mostly flat. However, that's not in line with CPI[2], which only really took off in february 2021.
[1] https://fred.stlouisfed.org/series/NFCPATAX
[2] https://fred.stlouisfed.org/series/CPIAUCSL