If Jesus could not be tempted then what was the point of tempting him? The whole exercise was meaningless, therefore likely didn't happen.
Honestly every now and then the witnesses come up with something a little bit logical but don't take it all the way.
If Jesus didn't actually die ( the way Adam purportedly has) how Is it a ran some sacrifice...how does it 'balance the scales'. Effectively Jesus felt some pain he didn't have to.