The EU proposal is driven by the actions of terrorists over the past 20 years. The substances that they seek to control are all well known precursors in home made explosive (HME) substances. It unfortunately has a knock on effect to those who would seek to possess the chemicals in the pursuit of a peaceful hobby.
Please dont blame the legislators or enforcers - do what you can to bring an end to the activities of terrorists who seek to destroy our way of life.
Controlling precursors is not a new concept. There is already legislation that controls/prohibits the sale and possession of precursors used for synthetic drug manufacture.
The interesting thing will be the requirements needed for a licence and how this interacts with any concessions that the UKPS are able to get with the ongoing UK law regarding explosives. If it prevents someone losing their life in a terrorist attack then that's a good thing - provided it is done correctly and doesn't just become the thin end of the wedge that ends up further harming any legitimate amateur science. The worrying thing is that they can carry on adding to the list, and knowing how the EU works, that's exactly what they'll do!