Why is there only 1 Guaranty document if I have multiple guarantors

One Guaranty document is all that is needed

Guarantors are jointly and severally executing the single Guaranty. The Guaranty can be executed in counterpart as documented at the end of the Guaranty document as written here: “This Guaranty may be executed in any number of counterparts each of which shall be deemed an original, but all such counterparts together shall constitute but one Guaranty.”