Middle Eastern visitors are chasing good local coffee ... while the Americans are, what? Sitting in the McDonalds drivethrough for some burned filter coffee (a real taste of home)?
I'm still amazed at how much bad coffee you get, even with restaurants. I'd love a massive James Hoffman-style scientific expose on local coffee quality, because places don't seem to understand the simple basics of "maybe don't buy your coffee beans in bulk at the same time as your toiletpaper". Like what's even the point of your super fancy espresso maker with its five parallel brew groups, if you're feeding Koffiehuis into it?
Strictly speaking no such thing as good or bad coffee.
It's all subjective taste. If it tastes good or good enough, it's good or good enough.
And not everyone is a coffee connoisseur, the same way not everyone is a wine connoisseur or an audiophile, or a Mac user.
That explains why the coffee you find disgusting is pleasing to so many others, and why so many don't bother with better coffee because it simply is not on any list of their priorities