BankID is happening in Sweden, has been for over a decade, more and more. Knowing how things are likely to be abused is not waste of time, but an indication to what direction to not build, in order to not build in an open invitation for it, but instead do it another way, or what to watch out for and attempt to speak out against when it comes to what's happening in society, etc. A basic safety/security precaution, much like "worrying" about not mixing chlorine-containing bleach and certain other cleaning products.