"Now, AF has more than enough long haul planes... getting the 346 would be just an excess with so many 777's, 747's, 343's and 330's."
has a lack of long-haulers. It would be redundant to operate the 346 alongside the 343, 744, 772, and 773. AF
is centralizing it's long-haul operations on the three aforementioned models, with four subtypes. The A346 is simply not needed in their fleet- it would add another sub-type and another engine type, and AF
just does not foresee that as a good investment, hence the order for the 773ER. It added little complexity when compared to the complexity the 346 would've added. Simple as that.