[janto]

Well, my take is not equivalent to OP, in that I actually don't agree :) I am a human-centered empiricist.

I think OP's logic flows the other way: skeptical of human-centeredness position (like you) and from that skeptical of going purely empirical (not like you/me).

I'd say LIGO described phenomena as gravitational waves through the interaction of the experiment. They didn't detect anything because that would go beyond empiricism into assuming the existence of a thing beyond the interaction