Time-Sensitive Networking (TSN) is great for making security easier in some cases.

In cars, there are multiple systems all working at once, each with their own security flaws. Brakes are one system, stereo system is another. TSN can allow all these systems to be put together in a way where we know the brakes will keep working correctly when the stereo is turned on. So now instead of securing multiple systems, there is only one system.

Another way TSN is great: for audio. Instead of creating a separate audio network in a huge stadium, just put it through the existing ethernet. This is much easier and with few cords everywhere and also better at syncing speakers - time that it takes to go through cables is not an issue.

Also, btw, this protocol is not new. Apple computers have supported this for at least three years, even back when it was called Audio Video Bridging.

So I worked in UNH's IOL AVnu consortium, if you would like to read the standards it is 802.1q and 802.1as.