What happened to FDA employees who were investigating Elon Musk's company?

According to Rachel Maddow's report, 20 employees from the FDA's Office of Neurological and Physical Medicine Devices were recently fired. This particular office was investigating Elon Musk's company at the time of the dismissals, raising questions about the timing and motivation behind these terminations. Maddow describes this as 'perhaps coincidentally' that the unit responsible for investigating Musk's company was the same one that experienced these firings. The implication in her reporting suggests potential concerns about regulatory oversight and the relationship between government agencies and private industry interests.