That’s a nice story, but there’s no discernable evidence of a disease in the last mammoths. There is however evidence for sudden extinction. Yes, there were some isolated populations (dwarfed) which persisted until perhaps 2000 years ago, and the Earth can only show one face to the incoming space crud which was found embedded in the tusks of the last North American mammoths. :’)
Space crud embedded in the tusks of mammoths?
That’s my boys! Fighting to the end against the alien crud from outer space while all the little wussies were hiding in caves and under rocks.