If you read their earlier post on it, the squareness is far from a quirk and actually a very well thought out design decision. Obviously design is a matter of taste, but like them or no, their method is a lot more than just being quirky or using buzzwords.

I'm not disliking based on aesthetics.

but because 100% of traffic lights were i live are square. nothing new.

also, besides being square, they have sensors in the asphalt that detects cars (and bikes in bike lanes) toadjust for optimum wait time.

Where do you live? They're all round here (and often barely visible, judging by the number of times I've almost been on the receiving end of a bumper...)