It's also incorrect. The premise that teams are backing away from data is completely wrong. Hell, the team this forum was built to argue about just had a big purge of its scouting department! The Astros killed their pro scouting staff. Other teams are doing that and leaning more into StatCast. Other teams that use lots of scouting aren't skimping on the data necessarily - heck the Rays of all teams have been on the forefront of big spending on scouts as well as the analytics.
Now he is right that "how do you turn data into performance" is the most important thing - but yes, teams are showing players what their launch angle is and measuring their adjustments accordingly. It'd be stupid not to. Also, the assertion that teams use data for things other than something like WAR is kind of a tautology. He seems particularly mad at WAR, though not even the companies that calculate it would tell you that it is like 0.1th of a win accurate or anything when assessing player value.
That said, he has also explicitly blamed DEI for Alex Cora being the Red Sox manager - so I kind of know how much faith to put into his analysis.