The article I posted earlier addressed that issue, so I did not miss your point at all. If the converted value had been $10,001 there would have been big trouble if it was undeclared.
But the OP wrote that the amounts leaving the Philippines were US dollars. Did you miss that point?
Until 2016 it was legal to take a maximum of 10,000 Php (Philippine pesos) out of the Philippines without declaring it. In 2016 that limit was changed to 50,000 Php.
How Much Money Can You Take into or Out of the Philippines – Philippines Information (in-philippines.com)
Here's a shock. 10,000 Php today is $189.24.
50,000 Php is $946.26.
Assuming the rate of exchange was relatively close the last ten years, OP and his cousin likely would have been arrested if caught smuggling the equivalent of about 500,000 Php our of the Philippines.
So, yeah, now I agree it's a customs issue but only a Philippines customs issue.
Now I understand why OP is worried about exposing the $70,000 to government scrutiny. I wonder if the Philippines authorities could charge him and extradite him.
Kennedy9, what method was used to smuggle the money out of the Philippines? How did you hide it? Just curious.