There is a reason Western built aircraft have a better safety record than those from some other regions of the world. How on earth can you have a thrust reverser system that allows thrust to increase without the actual reverser deploying?
Really, nothing unusual happened here. The crews chose to not make an approach during a thunderstorm. They held for awhile then diverted for fuel.No big deal. It happens every day. If you think every airliner is landing with hours of fuel left in the tanks, think again.