I don't care one way or another, but it certainly is not standard procedure as far as raffles go, so everyone would have to agree, because I'm sure most assumed one ticket, one chance.
If the randomization procedure is used, then you don't have multiple drawings. In essence, all names are drawn and placed in order.
Makes sense to me to generate the list, and start down it, with each successive winner deciding which of the remaining prizes they want, and any repeats having the option to not take a second prize and let you move down the list.
This avoids a whole lot of deciding and debating.
No problem at all. I've not done a drawing before and sure don't want to ruffle any feathers. A lot of people and a lot of money is involved here.