I think we're past the point where people care. By all means the One has done far better than the Wii U (and slightly better than the 360 launch aligned) in North America but you wouldn't know it from Halo/Gears sales (compared to exclusives on those platforms).
While they're in a good place with third party games, MS has to be a little concerned that the only recent first party title to overachieve was Horizon 3.
Not really, aren't scores trending downwards over time?
78 is described as good on every major review site.
Agree. 78 is 4 star out of 5, so how can that be meh? Is just a perception problem