My concern about Elwood is that its has:
sightseeing VFR traffic (possibly without TXP)
Traffic entering the MB Class D zone
Transiting VFR (possibly without TXP)
IFR traffic either using the aid at MB or transiting
Approaching that point, traffic can be on MB tower, ML radar, ML departures or possibly ML CTR.
It is an area of busy and complex transitional airspace. I've had a couple of instances of concern with the drop plane when I've been on IFR descent. The canopies might be in class G, but the drop occurs in Class C after departing in class D.
I think UTR's concern is that they appear to be less than meticulous about following the rules.