Could you please elaborate on actual reason behind the below mentioned 2 step process for upgrading mongo version from 2.6 to 3.2 version ?

From "https://docs.mongodb.com/manual/release-notes/3.2-upgrade/" page
"To upgrade from a 2.6-series release, you must upgrade to the latest 3.0-series release before upgrading to 3.2".

Do we need to follow this procedure even if we are shutting down the existing process (mongo version 2.6) and roll out a new mongo instance in 3.2 version with the existing data ? Sorry if its sounds a trivial question, just try to clear my head around on this one.