Have you noticed any change in numbers of pins per connector, wire gauge, pin type, connector type, stamped metal shorting spider or cap that covers the spider? Or, anything else that may indicate a design or parts change?
My '11 has spiders, just the same as my '06 had. So far, no trouble (knocks on wood).
And what of the '10 and '11 model years?
I removed the ones under the tank to put some petroleum jelly on them. Had there been any significant difference I would definitely have noticed. They looked identical to me, but it is conceivable they are of different material or plating.
Certainly the same basic design, and no difference in the loom in their vicinity.
My own opinion is that the wiring, in itself, is adequate for purpose. it's simply corrosion in the connector that causes the burning. Eliminate the connector, there would be no problem.