IIRC, FAA didn’t ground 787 until both Japanese airlines had grounded the 787. With the number of fatalities and accidents new 737 had, it should be grounded by all airlines.
What happened to better safe than sorry? Obviously this type of plane needs to be grounded until issues are resolved or the two crashes can be definitely be dismissed as a freak coincedence.
If not, then the Chinese system would appear to be superior as safety can trump commercial considerations then.
It would be a very suspect thing.