Page doesn't exist! I think you mean
https://www.theregister.co.uk/2017/03/13/pure_drops_to_fifth_overtaken_by_ibm/
Pure coming from nowhere? AFA's are relatively new and arguably Pure was one of the first to market! And the article says the current 10% is the 3rd period its' share has dropped in a row. Suggests that in recent times, since the other vendors have got their acts together, Pure aren't doing so well?