The thing is that you did something that is clearly against the rules of every competition. And my main problem with throwing isn't even the monetary gain for the team that throws. But rather the impact that thrown game might have on other teams, the tournament bracket, league standings. In addition they also deserve a ban just because of the stupidity to even throw that match, because I'm pretty sure they would have made more in salary by now, than they got through the throw. And just like with cheating for me one of the big points also is, you did it once why wont you do it again? Even though it's less of a factor because with maybe if you are getting banned for cheating you can only play on a pro level because of your cheats.
Still I wouldn't really care if they got unbanned, most of them are past their primes anyways so don't think they would be able to do much. Also would have less of a problem with it than with unbanning cheaters.