It matters if you believe, as we do, that scripture does NOT teach that all men are born "Totally Depraved" (i.e. so blind from birth that a clear proclamation of the gospel could not and would not convert them UNLESS first effectually regenerated by the Holy Spirit).
We are arguing the validity of Calvinism's claim of Total Depravity here Luke and if a passage appears to suggest that a un-regenerate man might be converted from a parable free proclamation of truth, then the concept of Total Depravity is debunked. That is the real reason you want to dismiss it as 'emotive,' but the truth is that this is a LOGICAL problem, not an emotional one. In fact, let's take ALL the emotion out of it and agree EVERYONE deserves hell, even those with the most faith in Christ, okay?
It's not LOGICAL for God to blind a person from the gospel using a parable to prevent his conversion, if the doctrine of Total Depravity is true. PERIOD.
If it helps you to stop blaming this on emotions, then let's change it from people to rocks. Would you think it illogical for God to use parables to prevent a rock from being converted since rocks weren't created with that capacity to begin with? Of course you would. That is completely illogical and frankly kind of crazy. Imagine going in your back yard and fearing the rocks are listening to your conversations so you speak in code lest they hear and believe your words. Why would you do such a thing? They are DEAD ROCKS!
Don't Calvinists, including yourself, continue to argue that men are dead like a corpse and thus UNABLE to respond willingly to any effort to persuade them with the gospel appeal? How it is logical to put a blindfold and ear plugs on a corpse? There is NOTHING emotive about that argument.