Why not BLE?
Well, honestly I've never understood the blind love affair folks have with BLE. It's short range, it's (for the most part) insecure, and it still needs a gateway to get out to the Internet to be part of the Internet of Things. Yeah, okay, WiFi also requires a gateway. Touche', but the WiFi APs (gateways) are pretty much ubiquitous in the home these days, not to mention WiFi is much more mature, secure, and reliable.
Now, if I was after a super low power consumption scenario then maybe I would consider BLE with a gateway. But, for the time being, I'm limiting the scope so as to KISS. Remember? You did read the project summary, didn't you?