Sorry if this has already been micro-analyzed, but in re-watching the game for details, I stopped again on that muffed punt by ISU. Very simply, how can someone be blocked 'In to' the receiver when the block is towards the outside AND the blocker releases ahead of the block AND the receiver? The terminology of the ruling is therefore, inaccurate, or a total blunder by the refs. If the blocker can avoid the receiver, again, 'in front' of the defender, the defender too can certainly do that. The rule or the training for the refs needs to adopt clarity. Especially, where this type of clarity is shown. That is one of many potential tide turning calls/no-calls.