Why, so you can turn it on from your smartphone when you're out of town, of course!
"Oh, Honey, I think we forgot to turn the stove off!"
"Well, I can't help you there, but I can turn off the fume hood from my phone!"
"..."
But it's Bluetooth so short range only? So it's not even good for that?
Not even that, it's Bluetooth so what it lets you do is turn on/off the fume hood from the other room, if you download Samsung's surveillance capitalism app.