Also doesn't mean that it does. More importantly probably, this test was a standard diet vs. a "junk food" diet, so it makes many more changes vs. the control

Also doesn't mean that it does. More importantly probably, this test was a standard diet vs. a "junk food" diet, so it makes many more changes vs. the control than just swapping sucrose for HFCS. It doesn't (and wasn't intended to) really reveal effects of HFCS specifically. Obviously you could look more at the specific differences between the diets used here in future research.