That the controller and game got a boost doesn't mean the same applies to the hardware, though. Especially since that is different than the other items in that it is divided in two SKU's. Amazon items are delineated by ASIN #, and I just checked the value bundle and Unity bundle are separate ASIN, for whatever that's worth.
Adding to the weirdness is the bundle is out of stock for the last day or so, so shouldn't currently be contributing anyway (but the momentum component could be responsible). As well, it's ranking of #197 by itself seems too low.
And then that Amazon is advertising the bundle on the main X1 Unity page, yet that bundle has consistently been shipped from 3rd parties the last few weeks, just adds to the oddity. At the very least Amazon is not handling it well as there could be some unhappy customers.
I'd agree there seems a chance the bundle did influence the Unity X1 hardware rank, but I wouldn't say it's 1000% certain.