It bugs the fuck out of me how much effort Path of Exile 2 puts in to advertising classes as vehicles for weapon skills.
You create a new character, you're curious about what each one is about, so you watch the little preview video....that is about weapons, and has absolutely nothing to do with the class.
What's monk about? Chaos damage? Elemental damage and invocations? No. Monk is quarterstaff skills.
How about the warrior? Does the preview tell us about totems, crafted body armour, or block chance? No. It tells us about maces.
New players are so thoroughly fed "class = weapon" that I'd be unsurprised to find out a large portion of them don't grasp that you can use other ones for quite some time.
Your point, OP, only serves to further cement this weird, baked-in bass-ackwards presentation of classes by forcing the gem window to shove the "class = weapon" thing further down the players throats.