No, this has to do with the lawsuit. Turbos weren't warrantied under emissions period even in Cali. The lawsuit changed that to follow Cali's emissions warranty period but accross all states, not just Cali. BMWNA is going to warranty the turbos in the same way as the HPFP, same accross all states.
There is another thread in engine section that has been following this lawsuit for months now since BMWNA lost the suit.