This isn't a tesla-specific thing or even something they innovated. The earliest cars with data networks had this.

It's also not something Tesla does better; numerous security researchers have bypassed that gateway.

Since you bring up Tesla: used to be that Tesla control units would fail after a certain number of drive time hours because they did so much logging to the flash chips they'd wear them out.

In a vehicle which is highly connected and basically should never lose power most of its life, they were writing logs to flash memory. Anyone who has done embedded work can tell you how stupid an idea that is.