The article was riddled with inaccuracies; That said, it is certainly possible that some few solicitors are doing conveyancing at €450, but they are not making a living at it, they are certainly not running an office on it, and they are so unrepresentative of market reality as to be a statisticially insignificant deviation.
Articles such as this are useful to the extent that they remind consumers to query price. It is unfortunate that the article makes so many assertions which are well off the mark.