Totally disagree with you Darwin. At the moment we have no knowledge that Mac cars benefited from any inside design knowledge.
Welcome to the forum 
So...why have McLaren been punished if it's nothing to do with inside knowledge?
Because... maybe... Ferrari has strongest influence in FIA and can force through a lot of crap no one else can..?
Let's face it, for as long as I follow F1 - good 20 years by now - Ferrari IS the dirtiest team in F1 - no contest. Exclusion of beryllium alloy from F1 engines, anyone? Or most recent 1-tyre-supplier-for-everyone stint? Loads of other crap, cheats, bending rules. You name it - Ferrari's got it in their pockets. It's a shame such lowlifes can actually make a great car.
Regarding that dude's testimony (about showing Ferrari's info to Mac's execs)... guy is obviously a low moral scum. Could he be telling lies just to save his sorrow... ? Sure can. Could he make a deal with Ferrari to save himself? His days in Mac are finished anyway. But whatever he said, simple fact that he's wife was copying Ferrari's confidential docs in PUBLIC PHOTOCOPY SHOP rather than in Mac's headquarters, behind 6 steel doors, tells me much more than his testimony.
Could he use his secret knowledge to point out at Ferrari's illegal solutions regarding floor-wing..? I bet. But I see him trying to make himself a hero and not compromise him at the same time, thus doing that in a bit more subtle way... like, saying that he has noticed something interesting on Ferrari; or, saying that his Ferrari friend mentioned something interesting while they had a beer last night after practice. Or... you choose. But walking around Mac offices with 700 pages book and then sending his wife to copy it in public shop? I mean... get real.
At the end of day, if Mac was found having any Ferrari solution on their car during first hearing, there would not be second hearing. There would not be McLarren anymore.
And what about Honda execs who were approached by both outcast engineers? Not important because they are not better than Ferrari? Puh-lease...
It's a pure political decission conducted by Ferrari's lobby in FIA governing body. I really hope Mac will fight that decision with all possible measures. A guy mentioned in other forum - Ron has more integrity than whole Italy. I'd limit that thought to ...than whole Ferrari.