Looks like the only addition to TSS 2.0 is the road sign reader, which I think is unnecessary. However, the rear side airbags are a big deal, and I do not like that my 2020 does not have them.
I don't think many cars have had rear side airbags until just recently (some prestige excluded). They've had Rear Curtain Airbags for a long time. Curtain airbags were the game-changer.
2.0 adds low light pedestrian detection and daytime bicyclist detection to PCS, Lane Trace Assist and Road Sign Assist.
