Well, I've been meaning to root mine and flash crDroid...
This is certainly the final push.
They state 10% of all Android devices are vulnerable and won't get patches, and since the vulnearbility is arguably wormable I can't see how these devices will stay clean.
I have the same question -- I turned off the Bluetooth radio on my phone the day I got it, and I've never turned it back on. But does that mean the radio is actually powered down, or is the phone blocking Bluetooth at a higher level? Similarly, or possibly the same question, is an rfkill soft block adequate for a laptop with bluetooth?