Americans with Foreign Bank Accounts Can Face Severe Penalties for Failure to Complete this Annual Report

It only applies to those that ever have $10,000 U.S. or more in that foreign account.
I'm Canadian and don't even have a Mexican account any more. Not worth the hassle with ATM's everywhere now.

Read the article you posted again.

"What many Americans living abroad don’t realize is that they are required to complete an annual report to the U.S. Government if the value of their foreign accounts exceeds $10,000 USD at any time during the calendar year (the Bank Secrecy Act of 1970). This report is entirely separate from your income tax return."

"Taken directly from the filing instructions (FinCEN Form 114):

A “United States person” that has a financial interest in or signature authority over foreign financial accounts must file an FBAR if the aggregate value of the foreign financial accounts exceeds $10,000 at any time during the calendar year."