Wouldn’t anyone? Vague instructions create misunderstandings between two parties and since this is a professional undertaking for the cabinet maker who obviously has much to gain by doing his job properly and well, it is not much liked.
But obviously you are the customer and a customer cannot expect to know very much about cabinet making and its technicalities. Wrong. You may not know much about cabinet making, but being clear about what you really want can help both you and the cabinet maker and save both parties a lot of hassle. Besides, you are going to be the final user of that cabinet so it needs to turn out good.