Since the US never fixes problems like healthcare or housing costs, I wouldn't be surprised that any tech savings are more than swamped by the costs of keeping up with competitive wages and benefits.
Good data analytical process still costs money and involves people
I would be shocked to learn that data collection, retention, analysis, and distribution costs haven't dropped by 50% or more since 2012.
(In the USA, the article does note that a real problem is some of the data is from unverified self-reported surveys and the response rate is low)