Fun fact:
If you do the 2016 to current map, they don't actually tract FCS level and below. So the NDSU taking Iowa's territory isn't changed until they lost to Arizona this year (2022). In that time NDSU lost to FCS opponents and it should actually go like this:
{Date}: Owner (losses to) -> Opponent (new owner)
-----------------------------------------------------------------------------------------------------------
Oct 15, 2016: North Dakota St -> South Dakota State
Oct 29, 2016: South Dakota St -> Illinois State
Nov 26, 2016: Illinois St -> Central Arkansas
Dec 3, 2016: Central Arkansas -> Eastern Washington
Dec 17, 2016: Eastern Washington -> Youngstown State (Bo Pelini's Team)
Jan 7, 2017: Youngstown State -> James Madison (FCS Champions)
Jan 6, 2018: James Madison -> North Dakota St (FCS Champions)
Feb 27, 2021: North Dakota St (Undefeated in 2018 and 2019) -> Southern Illinois
Mar 20, 2021: Southern Illinois -> South Dakota State
May 16, 2021: South Dakota State -> Sam Houston State (FCS Champions)
Dec 11, 2021: Sam Houston State -> Montana State
Jan 8, 2022: Montana State -> North Dakota State
Sep 17, 2022: North Dakota St -> Arizona (Who the map says gets it!)
All that to say the map shows the correct owner now, but is actually wrong in the intermediary.