I wouldn't consider this a "need" or even notice its absence as I've never had a car with this feature before. Having said that, I'm more interested in knowing whether other CX-30 owners have experienced intermittent issues with this function.
On occasion, the auto-bright feature performs exactly as I would anticipate it to under ideal conditions; this occurs on the same route night after night, with the same street illumination and everything. On other occasions, the lights don't automatically switch on. One possible explanation is that the 25 mph speed limit in this gated community is not high enough to activate the technology. Like I said before, I'm used to manually switching between low and high beams when needed, so this isn't a huge concern for me. Nonetheless, I find it intriguing.