It's amusing how the people who seemingly decide what counts as a hot hatch and what doesn't are seemingly people who don't 'get' or like the whole hatch thing anyway.
A car does not have to have 220+ bhp or do 0-60 in less than 7 seconds to be a hot hatch. Saying 'too slow, not enough power' does miss the point I feel....look at the recent pistonheads article on 'forgotten hot hatches', things like an alfa Romeo 145 cloverleaf, 150 bhp, 8.5 to 60, its still essentially a hot hatch...
A hot hatch is more about feel than outright pace, to me its something that has that 'chuckability', something that's happy being hustled down a tight b road. A racing puma will be far more involving than a Leon cupra r in such circumstances.
The racing puma has this ability in spades, its a fantastic handling car with a wonderfully revvy and characterful engine, that it is only 155bhp misses the point entirely as to what its like to drive...its a hatchback, fairly quick, sporty to drive with rally/motorsport influences to improve the standard car, if it isn't essentially a hot hatch in terms of how it drives, then what exactly is it?
Whether it suits the op though I doubt, its the sort of car you know you want to buy rather than one you'll objectively consider....very expensive for its age, with some issues over parts availability, and it will probably need some pricey work on brakes and bodywork over time....a real enthusiasts or 'fanboys' choice dependant on perspective.