I can't speak for the guy on allo, but I know first-hand that my friend DID put in the effort. In the end, she studied inefficiently and bombed. She sucks at memorization and hasn't found a way to combat that problem yet although she did do much better on her second set of exams than her first which makes sense since her first set revolved around Gross Anatomy. After Anatomy was over, her grade went up, but not high enough to pass.
The point is, some schools allow you summer remediation. Others allow you to repeat first year. Still others expel you. As an applicant, I think it's important to distinguish which school does which.