Granted you're using Canadian Funbux instead of Freedom Money - it's because you're at the dealership. Dealer's going to source a brand new part from the manufacturer, and put the OEM spec tire on it that they're going to sell you at a dealer price. How long were you driving that it wrecked the wheel? Seems a bit silly that they need to replace it.
You can probably source a used wheel cheaper (though the 2019+ 18x7s are pricey regardless - you might be SOL there. You mention "performance rims" - what are those?). The price of that tire seems a bit obscene - but it's the OEM tire in its oddball size (assuming the 18" wheels), and - again - from a dealer.