This makes absolutely no sense to me.
I don't doubt that there is a problem and it needs to be recalled, but I have have serious qualms that the cause is what the company says it is.
I had the spider out for a test drive yesterday, after a repair at the front of the engine. Everything was going fine there was a kind of metallic noise, like a spanner or something hitting the underneath of the car. I know this is probably off a tractor as I live next to a farm but will ask...