I kinda hate this. What I'd really like is the option to turn it on or off. I live near an airport airspace boundary and it's nice to have that wall keeping me from straying into airspace I'm not authorized for, but at the same time, sometimes the drone freezes and won't come back, so it'd be great to be able to get full control back temporarily.
Their reasoning is to give responsibility back to the pilot. A responsible pilot might want that guard rail. Having it as an option only makes sense.