The only common factor between tea and coffee is the use of boiling water to infuse or brew them. Even that is not quite the same as the correct water temperature for infusing teas varies with type of tea being infused.

Tea leaf versus coffee bean, the agricultural processes employed, the caffeine content and health benefits, the various type of product, the infusion and brewing methods and even the method of serving are all different.

That is why it is always amusing to read and hear about Tea and Coffee experts!