If what you say is true Ica then the McCanns have been responsible for misleading the investigation yet again.
One thing is for sure and that is that the description of Madeleine's pyjamas were superimposed on top of those of the child Innocentman was carrying to make it look like Madeleine.
Note the frilly bottomed PJ's

Sketch based on Jane Tanner sighting.
Not necessarily. I agree with Icabod's reading of JT as a people pleaser (with the little we can know of her) but it's possible GM was just being GM. He wasn't intentionally trying to mislead anyone, he was just convinced that he was right and has a more forceful personality than JT.
It's also possible that it was intentional though, but what he could gain from being one side of the street or the other, I don't know.
I know that the picture of Tannerman is faceless, but everything about him brings to mind a much younger person than Innocentman.... More than 6 years younger. I suppose that's probably the least of the discrepancies in the descriptions though.
I don't know. Tannermen/Innocentman is a strange one, all in all.