Right now, the Direct Edit command can be used to resize just about anything, including holes, unless those holes were created using Inventor's Hole command. In that case, we're prevented from selecting the hole for resizing as shown below:
While this usually isn't a problem, because we can just edit the original Hole feature to change the hole's size, sometimes using Direct Edit is necessary (examples in comments). I propose that this limitation be removed so that we can use Direct Edit to resize holes when it's necessary for our workflows.