Not only simpler but the only way a notary in my state will notarize the document (if it is a document that requires notarization).
Not all states require wills to be notarized. See
Self-Proof of Will on sites such as this one-
Chapter 732 Section 503 - 2012 Florida Statutes - The Florida Senate
Excerpt: "732.503 Self-proof of will.—(1) A will or codicil executed in conformity with s.
732.502 may be made self-proved at the time of its execution or at any subsequent date by the acknowledgment of it by the testator and the affidavits of the witnesses, made before an officer authorized to administer oaths and evidenced by the officer's certificate attached to or following the will, ... "