Wow, this explains a lot. I wonder if they're as inept when it comes to their search tech. The search result quality these days certainly speaks volumes.
Someone needs to write a sci-fi short story where in the future, a google AI is trained to maximize human happiness, but its ability to predict human happiness relies on this dataset of mislabeled human emotions farmed out to underpaid Indian workers.
Searching and labeling are vastly different areas. Google already proved their expertise in search years ago - what they do now is expand and adapt to changes.
When I was small, I decided that our neatly ordered little drawers of Lego would be much better if they were jumbled up - every drawer would then contain a sort of average collection so I would be able to just open one at random to get the part I needed. It seems that Google have applied that philosophy to search results.