The point was what I said right after the first sentence. I think you're jumping the gun by wanting to ban Dusk Stone just in case Pokemon makes the same very specific bone-headed decision that they had to fix. Then to back that opinion up, I explained why that should be a non-issue and doesn't need to happen when Mismagius already received an errata. But sure, apparently giving an explanation to back up my own opinion means you win. If it's that important.
Got it. I had no idea we were supposed to be trying to "win". My mistake.