Textures can also throw them off - "amplification" of the texture effect, almost.
They also suffer a bit zoomed in.
The post-processing fixes a lot of problems of older phone cameras but it has its limits.
On good camera hardware there's very little that all that post-processing would add outside of extreme-high-ISO-noise, IMO. Which - would it be nice? Sure. But you can find software and stack exposures manually and such for those situations too.
And a lot of the other smart stuff gets fooled too easily.