Boeing has taken full responsibility for the mid-air emergency and continues to work closely with the NTSB and the Federal Aviation Authority to implement measures to improve safety and quality. Several new checks and quality control inspections have already been implemented to ensure this type of fault doesn't occur again.
It's completely unthinkable that these planes can still fly, given the types of issues being reported. As an analogy, if you had a car that had a piece fly off while driving, prompting you to take it to a mechanic, and the mechanic says, "Here you go. The car is fixed. We found other problems, but you can still take it out on the road," you would be scratching your head.
There's a 16% chance that there will be a commercial service to travel between London and New York City in under three hours before 2030, according to the Metaculus prediction community.