ILS32 -
Is this a serious comment?
I don't think anybody suggested using bizjets on airline services until you did.
But it was suggested earlier that only "a few turboprops" would be able to use the SZD - this is demonstrably incorrect.
I'm guessing from your username that you live somewhere just south-east of LBA. If that's the case, then you'll already be aware how many business aircraft are present at airports nowadays.
And if you are involved in commercial aviation on a professional basis (as I am) then you'll know that business aviation is an important sector of the industry nowadays - you'll also be aware of the capabilities of modern business aircraft from short runways.