Does it matter? Didn't seem to lead anywhere. Just another wrong theory.
I think it does matter. It was valid information which had to be investigated.
This is what he investigated:
I have found, in June 2013, in the first volumes of the Polícia Judiciária Files, that a man is referenced, J.C., who: (a) was living near the 5A apartment the day Madeleine was abducted, (b) was also living near the location where the Smith family saw the suspect, (c) had a previous record for theft, (d) was an Ocean Club employee, (e) was not working between 09:00 pm and 11:00 pm on May 3rd. 2007 (then it was said he did not go to work that day), (f) might know well the Ocean Club apartments, (g) was in the zone at 11:00 pm on May 3rd. 2007, and (h) was in the zone at the time Madeleine was abducted (confirmed by his mobile phone records). The records include phone communications via voice or by SMS with his friend R. at 17:26, 21:25, 21:38 and 21:51 (the last confirmed by PJ files). The block 5 (where the 5A apartment is) had a theft on 5L on April 17th. 2007, and an intent of theft on G5 (5G) on approximately April 26th. 2007. That is, 17 and 7 days before the abduction of Madeleine.