After tracking down the link you gave, I found a page that mentioned that the shape of the pinna and the auditory canal had an effect on the amplitude of sound waves entering the ear. I saw nothing about the external ear muscles having this effect. I would assume that even if a designer worked by cobbling together ape chromosomes, he would have at least taken the time to trim the excess telomeres and centromeres off of the pieces to be fused.
Evolution is concerned mainly with common ancestry and the mechanisms of speciation and adaptation.
However, evolution does not predict the specific method of telomeres as a solution to the problem. But then, neither does anything else. The important thing is that the idea that humans and apes share a common ancestor, tied with the fact that apes have 24 pairs of chromosomes and humans have 23 pairs led to the prediction that there would be an extra centromere and telomeres on the fused human chromosome. I honestly don't see how anyone who is familiar with this evidence can deny the common ancestry of humans and apes. I didn't see this.