Uuuummmm ... not quite.
You are mixing ratings.
Some of those components are rated at breaking strain (BS)... (EG the snatchie)
Some are rated at Working Load (WLL)... (EG the 3.2 Shackle)
The load limit of that rig in the example isn't necessarily 3200.
As when the BS of the 3.2 WLL shackle is taken so you compare apples to apples it is at least 4 times or as much as 7 times the WLL. IE the BS of the 3.2T rated shackle is a minimum of 13 ton.
The shackle will therefore be the strongest component not the weakest
The max rating of the rig in the example is 2.5 ton to 3.5 ton depending.
Reason is the lowest rated item is the tow bar the hitch receiver is attached too so depends on that