Why screw over Florida? Ideally one selects 11 teams from the East and 10 from the West because that's how many had a realistic chance. The NHL said it was time to not be bound by tradition... then they picked an even number of teams (12) and kept the number of qualifiers in each conference equal. It's clear they want big markets like Montreal and Chicago to participate and drive up TV ratings.
Having all these extra teams and players only increases the odds of someone testing positive. Their greed might end up costing them in the end if they can't get this off the ground, especially if they are content on using Vegas as one of the hub cities.