Its clear to me you struggle with reading comprehension, so let me bullet it for you.
1. Marshall will NOT take you if you have a GPA below 2.3. Ask Emmitt Gooden and Darel Middleton
2. Alot of kids do not test well. So you if scored low multiple times on the SAT or ACT, Marshall will enroll you.
3. Alot of times, kids do not take the right amount of Core Classes. You can blame the school district, The High School, or the Guidance Counselor for this.
Its people like you who think if a kid is ineligible its automatic they have bad grades. There is more to the story than that.