Are we weaker without our artifacts? Probably. But we also now possess the Heart of a literal Titan which serves to empower us and our equipment with the very power of Azeroth itself. Is that better than my stacked Ashbringer? Hard to say. But it’s clear the power of that weapon hasn’t entirely abandoned me, as I still have ‘Wake of Ashes’ in my Talents.
That is true. She falls victim to her own hubris and while using us to free N’zoth, finds herself trapped by the machinations of her enemies. That doesn’t remove the fact that we’re among the most qualified people in existence to face off against her and win by this point - with aid, no less, from four famous faction heroes.
As for her being a raid boss, and thus having to lose… We’ve defeated Arthas, Deathwing, Archimonde, KJ, a Titan Soul, numerous Old Gods. At this point, her defeat was inevitable. And as wise old Terenas said, “No King rules forever…”
Well, it turns out that applies to queens as well.