Apparently the reason for the 3 nominations is that Hikmat Dib brings a lot of votes from Hadath and FPM cannot guarantee them if he is not a candidate, however Alain Aoun and Naji Gharios came before him in the party by-elections for candidates so they kept them and added Hikmat as the 3rd
It was a stupid mistake, which definitely will lead to FPM getting 1 out of 3, (in case the list ends up with 3)
It's simple Math. FPM has around 20k in that district (+/-) 2k. And so does HA.
HA will split their votes evenly between their 2 candidates, while FPM has to distribute it between 3. Which automatically kills the chance for the second FPMer to make it through.
Based on the results of 2009, the same alliance received the equivalent of ~3.2 Hassels. While the opposing List got 2.8.
It doesn't require a Genius mathematician to know the outcome of this. I don't know what the FPM electoral machine was smoking when they took this decision.