I honestly can’t think of any reason the Scott can’t do it all though. Even if you factor in a set of bearings once a year at £80 inc labour, then it’s a lot less than a £3000 new bike 😉
Factor in either a new set of wheels or changing the tyres from race-paper to normal every time you want a relaxed/adventure ride.
I don’t know Kryton’s temperament, but if I had a single wunderbike that I actually raced competitively on*, I’d be averse to taking it out in the mud, rain etc, for fear of wrecking it prior to an important race.
For your intended use, convention says the hardtail, modern practicality says full suss (especially as it is a proper British one that the designers understand may get wet). If you are coming from xc race bikes, both will feel slow and heavy on the demo.
*I do race, just not competitively.