Disappointed with Mel

Mel's whole thing in Arcane was shielding her allies, so I don't understand why they took that away from her. Sure, they want her to be primarily mid, but they essentially took away the core element of who she was teased to be. They could have just left in the ability to shield allies as well as herself and made her super playable in both roles but instead they tossed in "support is secondary" as an afterthought despite the fact that everything they showed of her screamed support. Why pivot and make her a mid laner? Not to mention that mid has gotten Aurora, Hwei, and Naafiri since the last true support champion was released - why exactly does mid get another one? I was really looking forward to her release but now I'm just disappointed.