This is absolutely incorrect. The best thing you can do to enhance your tea-drinking experience is to buy good tea, and good tea is invariably brewed off the boil, usually somewhere between 170-200F, depending on the tea.[0] Higher temperatures will extract too much tannin at the expense of aromatics. The British generally drink shit tea and then add milk to it, which is why they can get away with brewing it at 212F.
Remember that the British experience with tea dates back only to the 17th century, whereas the Chinese and Japanese have had much longer to refine the growing, processing, and drinking of tea.