My understanding is that spot metering can be useful when eg. the subject is backlit by a window or such, to avoid the bright bg underexposing the subject.
As long as the subject is wearing a shirt that is 18% grey I suppose that would work. Seems like such a rare event that I would not think too much about it.
If the subject is wearing a black/navy turtleneck or a white T-shirt then spot metering is going to screw that shot just as much as evaluative.