It's always nice to get kids that have other high major offers and I agree that is often a better indicator of a class than rankings. However, sometimes those other high major offers come after a kid has been offered by IU or even after they commit to IU.
There's no good reason to limit our staff to only recruiting players that have already been recruited by our peers. To be offered this early in the process, one can assume they are our plan A/B recruits rather than last ditch efforts to fill a roster spot.
There are roughly 250,000 HS seniors that play football. There will likely be a few players (especially at smaller schools) that don't get the recognition or publicity to draw attention for offers. Oftentimes, once a school like IU offers or gets a verbal, bigger schools look to see if they want to poach. Or it is possible that no one else wants to offer or the kid has made clear he isn't interested in more offers. Regardless, IU wants these kids and think they can help. I don't think Allen is lowering any standards just to fill his class.