Black tea needs to be brewed pretty close to boiling, and even green tea is brewed at 185, the same temp as the McDonald's coffee incident. I don't know how you can brew tea to order and hand it to someone a moment later without it still being at almost the exact same temperature. Tea also needs 3-5 minutes to steep, and you can't hold up a drive through just to hand it over.
I'm not much for Starbucks, so don't take this as me defending them, but I think most honest people would have trouble articulating why this merits a $50mm lawsuit. Imagine a similar ruling coming down on your local cafe.
I get if you are doing something different personally, but its literally the recommendation on the box. When I was learning about coffee I found that water into the brew basket or pour over at 185 would produce a terrible sour flavor, and that is well known in specialty coffee. Tea seems to be more forgiving, but I still let my water hit a boil before I brew mine. First result on google for a tea shop states the same thing: https://artfultea.com/blogs/101/tea-brewing-temperature-guide
I'm all for ganging up on mega-corps and watching them squirm when a lawsuit comes around, but it may have been a bit extreme to call my statement false. If Starbucks did anything wrong here, to me it was the cup not being seated in the carrier, not the water temperature.