(not super important but overlooked here) The “horse” is a woman

I'm sorry for accidentally misgendering a grown adult who's still naked with a young girl riding on top. I guess that triggers a different fetish then.

(definitely important) The scene was only an unfinished scene still being worked out

True but they still thought it was a great idea to depict this scene and then only change their minds not because they realized their mistake but because it works better with an adult doing the riding story-wise.

I definitely think Valve should have handled this more fairly.

The reviewer asked for a playable copy after being unsure from screenshots and text alone. I think that's pretty fair.