I was just in San Diego for GopherCon and, boy, what a beautiful place. This change will ensure San Diego can keep growing and prospering, meanwhile San Francisco continues to stand athwart history yelling STOP!
The city has build a lot less housing than office space over the course of the last decade, and that is the metric that counts (jobs-housing balance).
"The SF skyline is completely new" - Salesforce tower (office space), 181 freemont (2/3s office space) etc etc.
"SOMA, East cut, Mission Bay, Dog patch are entirely new neighborhoods", and yet still 77% of the land in SF is zoned for single family homes.
SF recently passed the Central Soma rezoning plan which creates an amazon HQ2 worth of office space (space for about 50k workers) but only housing for about 7k people.