I wouldn't be to concerned with the Blackhawks. It is four Blackhawks and it doesn't include the M134 or any other weapons. Falklands are also at the absolute range of a Blackhawk and that is one way mission.
State Department Press Release on it:
https://www.aa.com.tr/en/americas/u...f-black-hawk-helicopters-to-argentina/4053849
Oddly enough, I got a chance to go along the Argentine/Chilian border to work with the Argentine military the year before I got to go to Croydon to hang out with the TA (which is why I'm a Palace fan). My summary of the trip: Almost died on three different occasions (mortar went short, bus almost fell into a glacier, and plane lost an engine). I watched them get drunk in the field and light fire barrels during night operations, zero night vision and of a battalion of armored vehicles they had 8 M113s available which is the easiest armored vehicle in the world to operate. Country was beautiful, the people were nice and getting their ass kicked in the Falklands has emotionally scared their entire military.
My assessment of the Argentine military is that they would get their ass kicked by the Salvation Army, let alone the British Army. I can understand people getting angry at Argentina getting anything, but it is the equivalent of being angry at a Special needs person. They can say a lot, they just can't actually do any of it so it is meaningless ranting on their part.