Are you sure this is something you hear? I can honestly say I’ve never heard anyone say “get over it” or “you’ll get over it” in relation to a bereavement. Ever.
I know that sort of thing happens sometimes (Google presenting a spurious statement as a categorical answer) but those are bugs. As long as they are very rare, and fixed quickly when they occur, I don’t see them causing much harm.
OK, some people believe anything they read (especially if it confirms their existing biases), but that problem has always existed. I think Google’s occasional snippet fuck-ups are a drop in the ocean compared to the spread of false information through social networks.