Yields aren’t worth it is the consensus. The Brazilian community in Ireland are extremely price sensitive, often making huge detours via the ME3 to save money. Also those whose destination isn’t GRU are routing via LIS with TAP.
In other news AA confirm DFW-DUB is joining PHL-DUB as year round route, and CLT-DUB season extended. Both DFW & CLT to be operated by B772, whereas ORD & PHL will continue on the B788