As an AM, I like the artifacts allow new players to power up on old toys. Some of the old buildings are critical to competitive gameplay and the more peeps in your group that can make use of them, the stronger the FS is as a whole.
As a player, I don’t mind them because they sometimes help me complete a second or third base. Having multiples of key buildings also mean I have less room for other stuff and less FOMO during events bc I don’t need to fret about doing well to put another building out. I have a large spread of Moonstone sets in my first two cities so I am not short of spell frags, but my smallest city that is limited to just one Moonstone never has enough and artifacts are a decent source of frags. I accept the compromise even if I have no use for most artifacts won. Other people still need them.