i'm not really bothered by it, but i see his point.
the hornets are losing money, but if you just handcuff them and not let them make moves to improve their team, they're just going to stay status quo. they sell fewer tickets, lose even more money and that in turn makes them less attractive to potential buyers.
you add a solid piece that clearly makes them a better team and maybe you win a few more games, sell a few more seats, make the playoffs and maybe even make a little playoff run where you get 4 or 5 home playoff games. all of sudden that $2.24mil exception they were given has more than covered itself and also maybe made the team more attractive to buyers, which is the real objective. obviously there's no guarantee of that, but it seems like a reasonable gamble for just $2.24mil.
i definitely see where cuban's coming from. i'd be pissed off too if i had to come out of pocket to help one of my competitors get better. but i also think it was clearly a good move for the hornets and it's not like they're adding huge money.