This is an extraordinary claim. It looks only to the repayment of the loan, achieved mainly by borrowing abroad. Consider the record. The IMF has been at it since the 1970s. Successive Mexican governments have learned that if they face a crisis, one or both of these friends will lend them money to make the immediate crisis appear less onerous.
Investors have learned that they get bailed out, so they continue to invest.
I believe that goes far toward explaining why Mexican policy has been erratic and undisciplined at times. The foreigners don't deserve all of the blame, by far, but they contribute. The results have been disastrous for the Mexican economy and its people. Despite enormous growth in the world economy in the past 20 years, Mexican real income in dollars was the same in 1996 as in 1974. The Mexican people have been on a bumpy road, but they have gone nowhere.