It doesn't really have the same appeal as James Allen randomly screaming "ITS SCHUMACHER!!!" or Murray Walker's "That was a mega, mega, mega move by <driver>".
While having a race engineer is more realistic, I much prefer the atmosphere of proper commentators commentating on your race and enthusiastically exclaiming. Even if I do dislike James Allen, it was at least quite amusing (although sometimes irritating) to have him randomly scream half way through a lap about one of the AI crashing.
^^ Shift 2 is the worst
especially Vaughn Gitten Jr
He sounds like a 12 year old