I believe what he said I agree, we'll put it on the list to changing it to sell the idol lose the minions. He doesn't keep a list of cheese moves, he'd keep a list of bugs and other exploits to be looked at.
Exploits in fact can not be limited to bugs. Do you have common sense? If you do you'd know that if you sold an idol you shouldn't keep the minions, that's a common sense issue. Whether or not you use this tactic or want it to be fixed or not common sense says it shouldn't exist. That can't be argued away. I can't buy a regular (non idol) item and then sell it and keep the effects. If I could that would be complete bullshit and again, anyone with common sense can see that.
Certain things in games just CAN'T be changed. Certain things can't be programmed away for countless reasons. There are strats (or whatever you want to call it) for many games that are exploits, don't take advantage of any bugs but can NOT be "fixed" because the game just won't allow it to be fixed. Not a single bug involved but it'll still get you banned if you do it in those games.
People will use the "it's not a bug" to try and make themselves feel better. It seriously comes down to common sense. Should this be possible? The answer is no. I'm no stranger to exploits, I've got a history of beating the system. I've done things in games that no one has ever done before and has never been done since and when I get banned I'm not surprised at all, I knew it was coming and just a matter of time. Tell yourself what you want to get by but again, if you have any form of common sense you know it's not right.
I still give you my kudos for finding this out, good job on that. It's always fun to find some thing that just shouldn't be, the feeling of beating the devs.