Did DCI Redwood actually say that Crecheman was walking in the same direction as Tannerman was seen heading?
No he didn't.
It was in fact presenter Matthew Amroliwala who spoke these words on the broadcast:
"The British father had collected his two-year-old daughter from the crèche. He had been walking near the McCanns’ apartment". However, Jane Tanner was crystal clear about which directjon Tannerman was walking in - i.e. AWAY from the front door entrance to the McCanns' apartment.
Since DCI Redwood said Crecheman = Tannerman, we are bound to assume that Crecheman was walking in exactly the same direction as Tannerman.
If he had been walking in the opposite direction, then TWO blokes, of similar age and appearance, both without the child's mother, both with no buggy or pushchair, both carrying a blond child in white/pink pyjamas, with no covering around the child on a cold night (13C), might well have bumped into each other.
And if Martin Smith and his family are being truthful, Smithman would make THREE lookalikes, all men carrying a barefoot infant in pyjamas from, well, somewhere to somewhere.
That might be stretching things too far, even for the most gullible