Not necessarily... They were apparently different impressions of the same person, and no one knows whose impression may be more accurate. There doesn't appear to have been any CCTV to be able to double-check, so that's all there is to go on, presumably.
Well that's true, Carana, but you're looking at it from the angle of someone who is following the case very closely and has a lot of background information in mind when viewing the programme.
I was trying to put myself in the shoes of the average viewer, who will of course be very aware of the case but probably won't know a lot of detail. (I didn't pay very close attention to it until about 12 months ago. Before then, I had read only headlines. Only when I started reading more did I learn of the existence of so-called 'Smithman', for example, and other things that we on this site take for granted).
The fact that we and SY know the reason why two e-fits were composed - different impressions resulting from descriptions given by members of a group - does not make the interpretation or recognition of those images any easier for the public. They are being faced with visual information that is essentially quite contradictory.
If you are going to get a strong message across to the public it has to be done clearly and simply. In advertising for example, the message has to be strongly made and relatively simple. That is not to insult the audience, who have a sophisticated relationship with the media today. You can be sophisticated -with graphics; with a certain selling point or interesting angle that you are going to take. But you still have to be clear in your message, and, especially in a short bit, that normally means sticking to one point and elaborating on it, and leaving out the rest.
Perhaps SY thought they were doubling their chances of finding Smithman by releasing a 'double' image - but in effect they were just clouding people's minds. IMO.