No, I thought the insurance company always cut you a cheque for replacement cost and what you did with the money was up to you. We're replacing a 07 Camry with a 16 Sonata, but could have pocketed the money for all they care.
There seems to a anti-broker bias here. I'm unclear on how they operate, but I assume that their business model relies on sheer volume and the customer being ready to buy. The sales people in the broker's network know that they won't have to waste time that they normally would have to if the customer was at the earlier stages of buying and are willing to pay the broker for that lead. I'm not sure if it is relevant, but the Hyundai person I'm dealing with is the sales manager; no commission paid? For the costumer, the price has to be decent, otherwise there wouldn't be a space in the market for brokers.
In my case(s), I asked the broker for a car (trim, colour, options) and they come back with a price. I agree and then they tell me who to contact and then I buy the car. I'm not sure how it would work if you asked the broker for say, five or six different cars, trims etc. and then asked for all of the contacts for those cars. I know when my sister referred me to the broker she used, she said make sure that you only call him when you're sure you're ready to buy.