But without that explanation, the claim that the Indonesia site supports the Africa hypothesis isn’t true—and it actually reinforces the same Eurocentrism that motivates hypothesis 2.
On the face of it, the claim that representational art originated wherever we find the earliest evidence of it seems innocent enough. And if you really believe it innocently, the Indonesia site doesn’t affect your belief one way or the other. It’s only if you had an underlying Eurocentric motive for believing the earliest-evidence theory that the Indonesia site motivates you to switch to the alternative theory (which at least still credits the direct ancestors of Europeans with the invention of art). So saying the new site supports the Africa theory is taking for granted the Eurocentric worldview that would motivate that switch.
But without that explanation, the claim that the Indonesia site supports the Africa hypothesis isn’t true—and it actually reinforces the same Eurocentrism that motivates hypothesis 2.
On the face of it, the claim that representational art originated wherever we find the earliest evidence of it seems innocent enough. And if you really believe it innocently, the Indonesia site doesn’t affect your belief one way or the other. It’s only if you had an underlying Eurocentric motive for believing the earliest-evidence theory that the Indonesia site motivates you to switch to the alternative theory (which at least still credits the direct ancestors of Europeans with the invention of art). So saying the new site supports the Africa theory is taking for granted the Eurocentric worldview that would motivate that switch.