The allegations are/were that Guidry convinced Sam to portal out right after he (Guidry) left Tulane and while Sam was still at Tulane. To that point, Sam had followed him at every stop. Exact same scenario with Ponds, except this is first time following for Ponds.
IU coach moves on, Ponds follows him and nary a peep about tampering. I just know that if this was one of our coaches, NCAA investigators would already have plane reservations for an on campus inspection.
Now it could be that Ponds waited until the Spring portal session to give the appearance that there was no tampering. If so, its the kind of stuff you do to avoid the appearance of impropriety.
Theoretically, it could also be possible that he just so happened to decide to go Indiana w/o any back channeling.