I believe Goddess of Wisdom deserved a buff, not a nerf. Even in the situation you mention I think Ancestor Worship could be better, or some terrain-related pantheons. While they'd take time to upgrade, they'd not fade out so hard later on - the yields here are early, but not impressive early. I'd just rather take GoAC and feel stronger, not forced to do any sort of tactic.
I think the nerf originates from AI's performance, and I have a suspicion why. From my experience Ethiopia always takes Goddess of Wisdom despite the synergy just not existing as the pantheon would do far better in the hands of some early +science per building civ (Assyria, Babylon), not +tech civ, and AI typically does very well with Ethiopia, so the data must show AIs that take Goddess of Wisdom overperforming. It might be a far-reaching assumption, but I cannot remember a game Ethiopia didn't take Goddess of Wisdom and I cannot remember a game they did particularly bad in, so I don't see why they wouldn't be doing the same thing in Gazebo's test games.