It doesn’t matter if you are playing FFA or against Legendary AI, existance of Wonder age can be such a pain in the ass due to how unstoppable myth units and Titans become. Doesn’t help often some of your teammates are not contributing to the game but rushing Mythic Age to build a wonder.
I am all for Wonder Age being in most games, but when only counter to player spamming almost permanent Fimbulwinter with 4x power wolves is sniping their wonder, it becomes bit repetitive. Sometimes we just want a normal game that isn’t just about sniping enemy wonders and building your own.