It is the same thing. Answer the rest of the question as well. You left out some of it. Do you know why Bismarck, ND was named Bismarck? Because they wanted to entice German investment to come there. In other words, to "pump it up". How about the Trojans and USC? How about the city of George, Washington? Again, should the first president's family be able to force that city and the state it is in to change their names? For that matter, should North Dakota have to change its name? How about Sioux Falls and Sioux City? How about Sioux Tools? Why is it Irish people don't have a problem with Notre Dame? The Green Bay Packers? After all, packers is a nickname for a group of people. Same with the Purdue Boilermakers. How about the New Orleans Saints? I am devoutly Catholic. But I realize it would be stupid and insane to protest New Orleans' use of the name "Saints". The same can be said of St. Paul, Minnesota.
Sports teams, Cities, and Companies are named for something people are proud of and want to support and that means something to the supporters. No one names a company, city or sports team, or etc for something disgraceful or something no one wants to support. No one would name their teams, company, or etc. Idiots Inc. or Fighting Dummies.
What it comes down to is the Natives are on a strictly political agenda.
Why do you ask when Lakota/Dakota people first moved to the Devils Lake region? It has nothing to do with the debate.