Most automakers sell millions and millions of units in a short period of time, but Tesla does not. I’d be more interested to see what percentage of Tesla’s have been subject to recalls vs the total shipped, and compare that to a similar mainstream metric.

Yeah it's not a big recall in the scheme of things but it is a major percentage of the total production of the Model S (wikipedia says they were up to 212,000 at end of 2017).

GM's big ignition switch recall was 800,000, Firestone recalled the tires for millions vehicles back around 2000.

It's a sizable percentage of all the cars Tesla has ever sold, considering they're barely over 300,000 produced across all lines right now.

There are literally 2 much bigger recalls happening right now.

Airbags! Multiple companies have recalled a specific airbag module that catches on fire. 1+ million cars

Ford recalled 1.3 million cars last week, the steering wheel can fall off. That "internal manufacturing expertise" in action.