"Omicron and later" has huge variation. The variants people are getting now are as different to Omicron as the initial variant was from Omicron. They get named based on how concerning they are - they're Variants of Concern - not how different they are. So when they say "nothing works in a lasting fashion against them" it's because there are many of them.

The job posting, which is quoted in article, specifically calls out money laundering as well. There are tons of banking regulations related to prevention of money laundering.