Why is it called microgravity and not freefall? Cus afaik you are experiencing almost the same force of gravity as you would on the surface, you are just constantly falling.
Among other reasons, because it's not specific enough. Skydiving is also free-falling yet it's not at all the same conditions you experience on the ISS. And it would be even more confusing to describe an object on a trans-planetary injection or a free trajectory between stars as "freefalling", since you've removed the singular frame of reference you need to "fall" toward.