Sure, but then you’re taking it in small cup form rather than as a larger volume drink. That still makes them two very different things.

If I want a nice, large margarita, telling me I can have a couple shots of tequila misses the point. Nothing against tequila, but a mixed drink and a shot are different enough that one is not a substitute for another.

Same with espresso. Americano is much closer in form factor to a latte than straight espresso. And more to my post’s point, most times when people say black coffee they mean drip.