When I first read this article in yesterday's Sacramento Bee, I thought it was interesting but not necessarily "news". Today, however, I saw it reprinted on a national firefighters' website (https://www.firehouse.com/). Now it all made sense.
In anticipation of the upcoming CalFire v CalPERS State Supreme Court hearing, scheduled for sometime next month, there seems to be more acceptance by public safety employees to pay higher contributions. As Adam Ashton points out in the article, this seems to signal a willingness to "work with their employers to manage the long-term costs of their compensation."
If that's the case, it is a very clever move.
Whether or not the CA Supreme Court finds it convincing enough to find for CalFire remains to be seen.
To see what California police and firefighters make in counties throughout the state: https://www.sacbee.com/site-services/databases/article220811585.html