I agree on travel into the US, but I do think this is a little different.
By the look of both of those cases, what was triggering the additional enquiries was that the individuals didn't have return transport booked and most people coming here on holiday will have. I'm not saying those incidents were isolated as I have no idea, but they certainly won't be the norm.
My next visit to Europe will most likely be by cruise as the missus doesn't fly. It'll be interesting to see what happens at European ports when cruising start again.