Agreed that the large end of those pins should have faced the back face of the sonic - I had been thinking the same thing about a bit of gold paint
It turns out that the whole thing is rather easy to turn around! You just remove the two screws below the claw assemblies to have that part come loose:
https://c6.staticflickr.com/8/7623/27225848261_46ae97ae29_c.jpg
A couple small mods are necessary. There are two tabs, with one slightly wider than the other - the wider one just has to be trimmed down a bit on both sides (right photo above) for the end section to fit back into place after rotating it 180 degrees.
The other issue is that the sound escape holes are under one claw assembly, and not the other. For this mod you just need to Dremel away some of the interior of the opposite claw in a similar manner.