That article seems to be based entirely upon the myth that sugar is automatically bad for you. It isn't!
As long as you don't put on weight through excess consumption of sugar, there's very little evidence that it causes significant health problems. (Even Type 2 diabetes, which is sometimes linked to excess sugar, seems to only occur in those with excess weight, not in those who've simply had a high sugar intake).
I get through about ½kg of sugar per week in my tea and coffee at home, with more from drinks in cafés, etc. (If I'm drinking the really bitter stuff that McDonald's call 'coffee' I need about 8 sachets of sugar in it). I also eat about a packet of biscuits per day plus loads of jam doughnuts, etc. However I'm still under-weight for my height, and all that sugar seems to be doing me no harm at all.