Here's the thing to keep in mind about the "It has enrolled only 168 students ("with just four freshmen") for the spring semester." comment...
A lot of courses that would normally be "in-person" have gone online this school year because of COVID. If a student takes most of their classes as online classes, they're counted as an "extension" student (these numbers:
http://wiu.edu/IRP/enrollments/2021/spring/tdse_ext.php), not a QC student (these numbers:
http://wiu.edu/IRP/enrollments/2021/spring/tdse_qc.php) even if they take a class or two in-person on the QC campus.
It's rather disingenuous to say that the QC campus is that low in a year when so many classes have had to go online. Yes, there were only 4 new freshmen counted as QC students this year, but that means there's only 4 new freshmen for whom the majority of their classes are in-person on the QC campus. It's likely that there's quite a few more students that would be QC students, but have chosen to either wait a year to enroll or to take their classes online or mostly online.
If you look at Spring 2020 to Spring 2021 student enrollment:
Macomb went from 4,355 to 1,746
QC went from 355 to 121
but Extension (mostly "online" students) went from 635 to 3,231
which is why total enrollment only dropped a little bit
That doesn't change the fact that the QC campus is way down from what they said it should be, but outside of Dr. Rives leadership, I don't think you can put much of that blame on WIU. Just about all the state universities outside of U of I (Champaign/Urbana), U of I Chicago, and Illinois State have dropped significantly over the last 10 years, including the campuses that I'd bet the Moline mayor is thinking of when she says she wants another university to step in. U of I Springfield is down ~20% in the last 10 years and SIU-E is down ~9% in the time (nearly all of those drops in the last 5 years)...which means it's a statewide problem and a U of Illinois - QC or a NIU-QC would have had similar enrollment issues.