[mikegagnon]

> "Although we can think of reality as objective, there are some special cases that prove it's nothing of the kind."

This paradox does not say anything about the objectiveness of reality. Rather it just points out an interesting scenario in which individual perceptions of objective reality won't match up.

[Retric]

Not quite, assuming both observers had an accurate model of physics physics they would construct identical models of what happened. The difference is simply which coordinate system was used. So, they could for example predict what an observer on the other object saw.