Mazda 3: Is the safety pack worth it?

I am the loyal reader with the trusty Corolla with 266,000km on it, which will only bring $250 as a trade-in, on the brink of replacing it with a Mazda 3 as you recommended. I can get a new Mazda3 Neo for $22,900 which includes rear sensors as standard. There is a $1600 safety pack option that does not include a rear-vision camera but has "smart city braking, rear cross traffic alert and blind-spot monitoring". Is the safety "upgrade" worth it?