You have a link regarding moose have been on isle royale all along? Anything is possible and I'm always open to learn more factual info. I try to stick with .gov or scientific research journals/reports.
National Park Service states moose arrived early 1900's. This was well established as 1800-1900 was heavy human activity on the island mining copper. They swam, crossed ice bridges and some websites state the were populated by humans for the purpose of hunting. Here is a quote from NPS (and link)
Moose
www.nps.gov
Regarding wolves science journal by Rolf Peterson shared his sentiment he believed within his study of 2009-2010 wolves would go extinct due to inbreeding, deformities, and death. This developed into the 2018 human transplant of wolves and the challenges they face as wolves continue to leave the island via alleged, non existent ice bridges that wolf scientists state exist. (Bit of climate change humor

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I agree with you, they were not extinct in 2009. I was using Rolf's comments to support the position they would be extinct, if not for human involvement. I should have worded it more clear.
Thanks for clarifying.