Two general factors were already known: 1) unintentional transfer of steering control from helm to lee helm causing the helmsman to think steering control was lost: and 2) unbalanced control of port v. starboard engine because, unknowingly, only one was being controlled.
The report partially blames user unfriendliness of the touchscreen interface of the Integrated Bridge and Navigation System (IBNS).
In response, the Navy is going old school and retrofitting physical throttle controls. That linked USNI article is a bit confusing. Its photo “IBNS helm controls on USS Dewey (DDG-105)” appears to have mechanical levers:
as does the old school “Seaman Joseph Brown mans an older verison of helm controls on the bridge of USS Donald Cook (DDG-75) on July 25, 2019”:
But a drawing shows the IBNS without: