The human "husk" Julian and Barry are examining appears to not have any toes, but a boot toe.
Jay gives Barry a lecture about how changing the past (creating a "flashpoint") can alter the future. This ignores the fact that the entire show takes place in a "DOUBLE flashpoint," created when Eobard Thawne changes the past by first killing Barry's mother and second by killing and replacing Wells. By stopping Thawne in the first place, Barry doesn't create a "flashpoint," he actually PREVENTS the creation of two "flashpoints" and allows the timeline to proceed as it should have.