I don't knowwwww FutureBit sells the Apollo II as a Full Node + Miner or just the Miner that can hook up to a Full Node. I'm pretty sure it's not a bad idea to give people options and let them decide what's best for themselves. Or as you say, FutureBit is stupid.
I say it's stupid for me, but people can find it amazing and buy it.
it's just kinda stupid because of the storage requirements... i mean, can you mine from a pruned node tho? i guess if you can, ok, but otherwise it's over $100 plus the price of the computer itself, and when the network traffic is bad and the ordinals are spamming unless you set a bandwidth limit you will end up suffering (very very) occasionally missing mining a block because your network was so clogged with traffic that someone else's block squeezed past it