You mean we hope the surgeon and accountant say it with knowledge!

Yes, it is a bit of a meaningless reassurance. I don't say it myself, but I can see that people grab it when at a loss for words. Me, I tend to say nothing when lost for words...

On the other hand, some people prefer to hear this, others prefer to hear about possibilities of good and bad. I'm starting to get the picture that various quotes or clichés have an original good purpose, but when said in an empty way or just to fill space they take a meaningless character.