Don't you think the shutter speed threshold of the camera in auto mode is too low ? This result in too much blurry photos in dark scene...
Let me explain : depending on the light available in the scene, the camera will adapt shutter and ISO.
The default algorithm seems to increase the ISO only when the shutter speed goes below 1/30, which is a standard value for a camera, but is too low for a smartphone that you can not hold as steady as a DSLR for example !
So the result is blurry photo because of a slow shutter speed, although the ISO is only 100 for example, and could have been bumped a bit without damaging the quality to allow a faster shutter speed which avoid blur.
I think for a smartphone this should be set to at least 1/60, or maybe even 1/100. The ideal solution will be to have a setting to define that (like every camera with an auto ISO mode...).