Even without the whole "SD Card/Reader is busted or lost" protection thing, the ability to boot without an SD Card has enough niche uses to be worth developing as long as it doesn't cripple features.
There's probably at least one jabroni out there who uses/wants to use one card in multiple devices, after all.
There's probably at least one jabroni out there who uses/wants to use one card in multiple devices, after all.