Except it's not subjective because a game will have a base level of character performance tuned around the content. It is provable that most of the game can be soloed or grouped just with base attunement. The system allows a character without artifacts, and actually without any equipment at all as I also removed my wands, rings, sash and necklace (I wore my cloths) to be competitive in the content it is supposed to be competitive in and also content where it is probably not supposed to be. That is a fact, build a deck and test it out. You can also do this content with various different builds. I actually find as a tamer some content is easier, some not so. My taming build uses various glyphs from different trees as does my fire mage. If you watch players that play swords or spears then their builds will contain glyphs from different trees and it is not unusual to see them swap out glyphs for others mid fight depending on the situation. Fun is something different entirely and has nothing to do with the impact of artifacts but as I said, myself and pretty much all of the players I watch on youtube and twitch use a variety of different glyphs in their build and it is generally fun. It's sounds as though you either don't have the time to invest in the game you would like or you don't want to invest that time and that is a very valid point as it is super grindy. This would require a fundamental change in the games systems and mechanics though and making artifacts weaker would not achieve what you want.