There is certainly an element of that, although I think there are a great many logical inconsistencies in the way we have categorized, particularly the definition between, for example, restricted and prohibited firearms. Many of those are more a matter of historical accident and political compromises than any actual intent.
There are firearms that are completely useless for any violent purpose but are categorized in the highest category. What I am saying is that, in general, there are many things that are put into the higher categories that probably shouldn't be there.