It wouldn't have mattered if they had only used their numbers, they would have had to change the rules of the lottery too. Everything outside of the first team drawn is irrelevant in the NHL system.
I think what he's trying to say is that we'd be picking number 3 if we used the NBA's system. Which is completely irrelevant since
1 we don't
2 even if we did there is no saying the lottery balls would have come out the same on a completely different day and completely different system