From California Globe :
C. Jarrett Dieterle and Steven Greenhut of the R Street Institute addressed the exemption issue in a recent editorial  titled, Crony carve-outs in California independent-contractor fight: 
“In the aftermath of a far-reaching California Supreme Court decision regarding worker classification, state lawmakers are poised to fail one of the most basic tests of good governance: the equal application of the law. Instead of fixing a ruling that threatens the gig economy as well as many, more established industries, the Legislature is working on carve-outs for politically connected industries. This is the wrong approach.”
State labor representatives have also started hedging, claiming that “conversations” are needed about exemptions for hand-picked industries. Gonzalez-Fletcher has openly acknowledged that lawmakers are “meeting with countless industries” about carve outs and that “[e]verybody is lobbying for an exemption.” This type of government by exemption gives credence to critics who suspect that the legislation is a union-backed effort to quash competition.
- “California Globe”: https://californiaglobe.com/section-2/california-lawmakers-could-ruin-the-gig-economy-if-ab-5-is-signed-into-law/
- “recent editorial”: https://www.eastbaytimes.com/2019/03/21/opinion-carve-outs-for-cronies-in-california-independent-contractor-fight/
- “Crony carve-outs in California independent-contractor fight:”: https://www.eastbaytimes.com/2019/03/21/opinion-carve-outs-for-cronies-in-california-independent-contractor-fight/