If anything I think it'll probably be a competitive incentive for Fractal to produce a larger and more powerful floor unit. If I had to wager I bet that's already in process.
Seems like the QC is more along the lines of the Kemper in terms of the modelling paradigm. I've got the Axe-FX III and FM3, and through a traditional guitar cab they're every bit as good as my tube amps, and I'm the guy whose main rig was only ever going to be a tube head. I think component-level modelling is probably the future in terms of the authenticity of tone and feel. All of the major players have units that can be made to sound great though. In a lot of cases, the price points, UI, and depth of tweaking are bigger differentiators than the tones.