Please cite each of those 10% and 100 year numbers.
You can read the text change. It allows duplexes and ~doubled the allowed density on almost every residential zoning type.
What makes you think that the changes made will increase relative to baseline by more than 10% increase in housing stock over 100 years?
What makes you think that the changes made will increase relative to baseline by more than 10% increase in housing stock over 100 years?