Maybe a particularly nasty issue rectified the added effort, to cover all bases. To be fair, after fresh install, it takes a while until all updates are installed, including IE11.
It seems that Microsoft has stopped releasing separate IE Cumulative Updates for Server 2008 R2 This will affect people who use Security-only updates as the IE updates are now exclusive to the Monthly Rollup ! More info here : https://forums.mydigitallife.net/threads/windows-8-1-hotfix-repository.47590/page-187#post-1887683
They don't release separate IE Cumulative unless it contain security fixes it's not the first time Monthly Rollup get updated IE components that's why the Update version and KB shown in About page still says 11.0.385 (KB5060996)