This case isn't a California-based case. It's a 5-page per curiam decision by the US Supremes coming from Florida. It's yet another case where the State Court thought it could blithely ignore the FAA.
Agreements to arbitrate that fall within the scope andcoverage of the Federal Arbitration Act (Act), 9 U. S. C. §1 et seq., must be enforced in state and federal courts. State courts, then, “have a prominent role to play as enforcersof agreements to arbitrate.” Vaden v. Discover Bank, 556 U. S. 49, 59 (2009).
Understand? And hey, plaintiffs' counsel in (Brown v. Ralph’s Grocery Company (2011) ___ Cal.App.4th ___ (2nd Dist., B222689) and Sanchez v. Valencia Holding Company, LLC (2011) ___Cal.App.4th___ (2nd Dist., B228027) (discussed by CBL here); don't spend the money yet.