Is Google source safe to use?

[Zapata]

From my understanding of the code, currenlty the Google source does (with the default configuration) an average of the last 4d quotes with an 1h scale.

This behaviour does not match all the other sources which compute a 'last' price (~ real time).

Should we remove Google source to avoid missuse?

[Zapata]

Additionnaly Google does not support officially the API... and it has been reported to be unstable.
From pandas-datareader:

As of v0.6.0 Google finance is still functioning for historical price data, although there are frequent reports of failures. Failure is frequently encountered when bulk downloading historical price data.