I think the experiment desribed in the article is very interesting, in that it is just a picture of someone - so you're judging purely on looks. What it doesn't take account of is that irl, personality has an effect on attractiveness.
Someone can be very beautiful 'on paper' I think, or when you first meet them - but if they are very vacuous, or mean, they soon seem less attractive. On the other hand, you sometimes meet someone who is pretty normal looking, but becomes much more attractive as you get to know them. Jo Brand and co are very successful because they have a huge talent, and their talent doesn't (always) require you to have a 'textbook' beauty.
I think the TOWIE look is just awful, but I think it does nobody any harm to always look well groomed, and make the best of their looks. I really think that the article makes a good point - forget about cosmetic surgery, just try to keep the weight off and get a good haircut.