Seems like a really basic feature that is really needed.
Or maybe I have missed the section.
But if you click the product, there is no way to actually print the Bill of Materials.
If you export it on the products page, it prints all of your BOM's.
I am not sure if this is what you mean by "export it on the products page" (maybe you mean the Export > Bill of Materials feature), but there is a print option on the same All Products page to print a "Product Specification" for all selected products. See screenshot below. The default Product Specification document template has all kinds of information about the selected product. This template could be copied and modified to have just the BOM for each product.