Could someone do 80 miles a day and finish the race in 38-39 days? Yeah, probably. 85 miles a day (36 days). Yeah. But Schwerk had to run the 3100 a couple times before really excelling... So maybe a Mike Wardian or a Tim Olson or Camille Herron could do really well, but Aalto's record is no joke.
Wardian, Olson and Herron have ZERO multi day experience.
Predicting that they would do well is like saying a good 1500 meter runner would crush the marathon.