To be fair, the wonders might not be exciting, but I'm glad that they're not actually broken as many like to proclaim. Trade routes were a problem because they warped the entire economy and were disproportionally powerful. Hence, squeaky wheel gets the grease.
Wonders? They don't "warp" the gameplay in the same way, the worst sin is that you can ignore them but they don't have any bad effects, so to speak.
That makes them a low priority issue to me. Yes, it'd be nice if they became more worthwhile and interesting... but overall? I can live with it.
As long as an AI thinks a complete garbage wonder is a potentially good idea, it's warping the game.