Of course they would be in shock. Wouldn't any human being? Oh I keep forgetting, the McCanns and their friends are not allowed to be affected by trauma like the rest of the human race
If Jane left at almost the same time as Gerry, then how did she know about Kate's comment that he had probably turned the TV on to see the football - which she thought could be the reason why he'd been gone so long. JT would not have known about any of the comments that the group made about where he'd got to. But she did which proves she could not have left at the same time as Gerry, and that meant Russell was mistaken.
He wasn't lying - that is what he first thought had happened. But if he spoke to Jane about it IMO she would say ''No - we didn't leave almost at the same time, because if you remember I was still there when we were wondering where Gerry had got to.'' And Russell would accept that.
There is nothing odd about that - it happens all the time when more than one person are trying to remember back - especially to something which was not important at the time and so they had no need to make a point of remembering it while it was happening.
But at what point do you judge witness contradictions or, as Menezez says, "lies" to be suspicious?
At what point do you accept that collusion and the describing of other people's actions as witness malpractice which harms the truth from coming out and makes the search for a missing child more difficult, and at what point do you regard that as suspicious?
Becuase the way you seem to be able to try and explain all of these contradictions makes the use of witness statements in an investigation, any investigation, completely worthless.
A point has to be reached where the weight of contradictions and lies leads investigators to be suspicious of the testimony given and the witnesses giving them.
But apparently not to you.