The S-400 system is considered the most advanced in the world.
The men were captured during a violent confrontation with Russian navy ships on Sunday.
Tony Schwartz went on a Twitter rant on Tuesday and Wednesday.
The controversial leader has repeatedly referenced raping women despite widespread condemnation.
Many Filipinos see martial law under Ferdinand Marcos as a kind of "golden age" for the Philippines.
It is not the first time the Philippines president has referenced cannibalism.
"He signs papers, he reads, he consults, he's actually very busy."
The war has lasted for 14 days in the southern island of Mindanao.
Philippine authorities say there's no evidence of terrorism in the attack which left 36 dead and dozens wounded.
"It's very sad to be hitting our own troops," Defense Secretary Lorenzana said.
The army has used airstrikes and street combat, yet still the Maute Group Islamist militants fight on.
The army has used airstrikes and street combat to try and force out the Maute group militants who took hold of the city a week ago.