What strikes me is that besides specialized players (like BeyondTrust and Securonix) from the mainstream security providers only the "new players" Crowdstrike and SentinelOne are listed. Also noteworthy that Cylance (takenover by Blackberry in 2019) who leaded the Next Gen AI based security hype is not mentioned either.
Identity Threat Detection and Response players mentioned in the article posted by the OP
As posted
here and
here old tech is not very effective against Identity Attacks, because as the article states "hackers don't break in, they log in"