Geometry is a bit tricky. A lot of "obvious" facts about geometry are less obvious to prove from a given collection of axioms forming a model of geometry, because their "obviousness" stems from our natural facilities for understanding space and position. Sometimes, historically, things that are "obviously" true in geometry turn out to be false, or depend on unwritten assumptions, for complex reasons. It may be surprising in this light if current AI can beat humans' intuition plus logic using purely analytic tools.