They are correct, you are looking at players who were JUCOs so they only got two years of eligibility to start, they ended up staying three years because of the Redshirt.
However, also in DI, ineligible will not always come back, it even says in the FAQs they are granted a fourth year of eligibility if their cumulative GPA is 2.7 or above and IF THEY CHOOSE to return, so they can choose to not return, it might not be common for them not to return but it’s possible