I read the article and it didn't seem to be that they would be advising how to clear history and that x site is better then y site. I agree with the above, in the context given in the article it seems a sensible idea.
I recently discovered my 11 year old surfs the net looking for porn. I was quite shocked. i considered nanny filters, sought advice as to where I stand on this etc etc At work we probably have the best filters going, however I still have unintentionally found depraved bestiality pornography. Not to mention the nurse/catheter fetishes that come up when we are researching products for work. I have been open with him, I check up on him to make sure he's staying safe, I dont want him to feel dirty about something completely natural. Keeping children away from pornography if they use the internet is impossible, so its sensible to educate them in this area.