Parliament isn't political and it doesn't govern. It is the marketing front of liberal democracy that exists to represent the ideals of debate and civility on the outside, and on occasion speak in unison to express class interests. They may "decide" that a matter is to be dealt with once in a while, only to immediately surrender the matter to a long chain of civil servants, who decide over how to go about it, to whom to pass it on, or whether to declare it impossible altogether.