Some of the runners who transferred had their scholarships taken away for disciplinary measures. Otherwise they would not have transferred.
Regarding Oregon, just like any dominant entity, people love to see them fail and/fall. It's no different with Oregon than it is/was with the Yankees, Salazar, NOP, Miami Heat/LeBron, etc, etc. Everybody thinks they win unfairly. It stems from jealousy and insecurity.
That's why Oregon haters will always be there: 1) There will always be lots of insecure and jealous people and
2) Oregon will always be a dominant program.
Oregon supporters just need to accept it for what is is.