My suspicion is that they did it for privacy reasons.
Let me give you an example - you have a photo of someone. Should Google give you their facebook profile in the results if you search for the picture? Their AI is certainly capable of this, but some people would be understandably creeped out by it.
Let me give you an example - you have a photo of someone. Should Google give you their facebook profile in the results if you search for the picture? Their AI is certainly capable of this, but some people would be understandably creeped out by it.