Given how the labor market cooled over summer, is the labor market still on thin ice?

In September, 254,000 jobs were added to the US economy and the unemployment rate ticked down very slightly to 4.1%. It's unexpectedly strong, and relieving news for workers after a pretty lackluster summer. But, given how the labor market cooled over summer, is the labor market still on thin ice? And if there were to be a plummet in jobs, could anything be done to speed up the recovery?