It's purely subjective.
Let's not get into one-make forum territory here, where a liking for one car somehow stops any other car being any good.
Just cos I don't class the Impreza as a hot hatch, I still think it is an epic car, although again, I think Scooby purists hate the fact it's become a hatch. Myself, I prefer the saloon Impreza, it made it different from other cars around it.
To me, a hot hatch is all about go-kart handling, a high-revving n/a engine and scrabble from the front wheels.
It has to have fwd because these days the base car that it came from, with the honourable exception of the impreza, will be fwd. Stamford's examples would be hot hatches for their time, as their base cars would have been rwd also.
It has to have n/a because the lazier delivery of a charged engine doesnt fit the hot hatch character, which is foot to the floor, redline, change gear.
But it's just subjective.