So I was talking to an Indian friend last night and learned that chai means tea in hindi (Duh in hindsight). So many in the west associate chai with spiced black/herbal teas. But a large majority enjoy assam with milk (which is chai). So to many people from india it is strange to call a tea 'chai tea' like we do in the west.
Masala means spiced. So correct term for what people are usually thinking of is masala chai. Not 'tea tea'.