The brutal reality of American sports is that the regular season, generally speaking, doesn’t mean anything.
Sure, it is impressive that the Zags became the first team to run the table in the regular season and conference tournament since the 2014-15 Kentucky Wildcats, but ask those Wildcats about their place in history. They are currently fondly remembered as one of the most dominant college basketball squads in recent memory, but they will never be a Jeopardy answer thanks to Frank Kaminsky and Wisconsin.
I point you to the 2001 Seattle Mariners.