The ballot question is actually about the "Right to WebApp Development Competency." Voting yes means you believe that, after a "Such platform shall be directly accessible by the owner of the vehicle" law passes, webapp developers will MAGICALLY gain the competency needed to rapidly deploy a life-or-death-critical service for access by millions of unsecured client endpoints, and deploy it with no security-relevant design or implementation flaws.

There's at least some hope of delivering a secure service to dealerships. (I don't know whether this has succeeded.) There's also some hope of delivering a secure service to registered endpoints at independent shops that can be audited for client security practices. This is the correct next step. With the state of webapp security today, there is NO HOPE AT ALL of delivering a secure service to the general public.