Zoran, I am thinking you are a delightful cynic, lol.
Watching the Camera Store video, Chris seems pretty clearly to suggest video shooters are going to be much happier than still shooters, but he has a leaning towards video it appears. Not surprised he gets 'blurry shots' with the a7/a7r the way he manically waves the camera around like a prop - which I guess it is.
TBH, Sony's problem with the a7s for stills shooters is that the a7 and even more so the a7r (relative to res) are so competent already - in ALL light. He used a slow zoom, presumably FE 24-70, and took a lot of images *2-3 stops higher* EVs than I often do with the a7r:
I max out at 6400/f2/1/60s in general for highly acceptable but obviously compromised quality, well handled with RAW post work...but if we say you get say, 2 stops more EV for same quality..it's either more DOF or a more 'secure' s/speed.
Not much gets past those settings of mine, that is candle light or soft light shafts from far above skylights at best, and I seldom need longer FLs than 35-55mm which helps with h/holding. I always use wide-ish apertures in low light to take advantage of the preferred bokeh of my lenses (bought in part for just this characteristic) and to take out of play unwanted shadow details - I get images I prefer that way. Just thinking aloud here how I see it. At the moment anyway; all this stuff is a moveable feast, obviously.