Generally speaking intermediate product never goes to toolbest, this is due to human interaction.
In fact having inventory filters forcing items to go to inventory is a good idea, but in practice, this is not really convenient, peoples sometimes put items in the quickbar because they do repetitive task and at this time they would not automaticaly think about why their items are not dropped in the quickbar, it's better that the mod keep it's functionnality natural.
But I could implement it with a optionnal single config to allow this.