I believe there will always be situations (though specific) where a shared-memory concurrency model is the most efficient and performant use of available resour

I believe there will always be situations (though specific) where a shared-memory concurrency model is the most efficient and performant use of available resources. For this reason alone, shared-memory concurrency will always have a place. That said, I generally agree that the isolated parallel memory model is preferable for simplicity's sake.