The second one is the approach used in Manitoba. If you want to read an election act that's written in plain language, I think Manitoba's is the best example in the country.
Section 2 of the Manitoba Elections Act deals with establishing identity:
A person who is required to establish his or her identity under this Act
—section 129 says that every voter has to establish their identity—
may do so by providing (a) an official document issued by a federal, provincial, or municipal government that contains the person's name and photograph;
—rather like our first step in the document you have there from Elections Canada—
or (b) at least two documents that provide evidence of the person's identify satisfactory to the election official in question.
That's like the second part of the Elections Canada arrangement. But here is the difference.
Instead of vouching, it says:
If none of the documents provided contains a current address, the person must make a signed declaration as to his or her current address.
So there's no vouching; there is a signed declaration. There's a paper trail, there's integrity to the process, and you're not disenfranchising.