I believe that the majority of players will support Blizzard in this. Please read the whole comment before you downvote me ...

SC2 players are very competitive and trust Blizzard to prevent cheating or devaluing the Battle.net achivement system.

Single player games can be played offline (not logged into Battle.net) or played online with cheats. Both of these situations do not reward players with points or Achievements (badges for having accomplished something).

Blizzard is banning people who gamed the Battle.net reward system. They are not banning people who played offline or played with built-in cheats.

If you mess with Battle.net, you will be banned.