Great, so for people who maintain their wiper inserts, it's there to save those who can't save themselves. For people who are even less capable of taking care of themselves or their cars, it will scratch the glass when someone's wiper insert is so worn that it has practically disintegrated.
When I first noticed it, I genuinely believed there was something wrong with the wiper module and/or motor. Only when I allowed it to continue and I noticed a pattern did I realize it was an intended design.
A light drizzle might necessitate moderate usage of front wipers without any need to activate the rear. In fact, some people might never use the rear wiper and never bump into anything as a result. I'm not one of these people, but I find the rear wiper is not all that relevant to safe operation of the vehicle. It's more a novelty to me than anything else.
I find all these new safety features to be much more invasive, inconvenient, and completely unnecessary than useful. I'm so glad I didn't get the SensingSuite or whatever they call it on my 2019 LX.
End result is I'm going to use my front wipers LESS frequently than I otherwise would. Perfect example of unintended consequences and the addition of a so-called "safety" feature backfiring and actually resulting in a more dangerous driving condition that was created by designers who want to drive my vehicle for me even though they'll never meet me or come anywhere near my specific vehicle. Great!


Also see:
self-fulfilling prophecy.
All this collective societal movement towards catering to the lowest common denominator is going to lead to the doom of humanity. Nature and evolution never intended for even the worst seeds to survive and reproduce. Someone who doesn't know how to activate a simple windshield wiper switch should not be making babies!
"We have problems caused by technology and we try to solve them with more technology." - George Carlin