I think people are confusing "production issue" to be "bandai messed up" --> people want to know how/what happened and to make sure it won't happen again.
Production issue = the people who actually produce the cards messed up --> bandai had nothing to do with it & was not at fault.
Could bandai have planned around this specific production issue or given more time between finishing the set and producing it? Maybe, it would be nice if they did, but there's always going to be something you didn't account for and sometimes the solutions just aren't viable. This was not bandai's fault this time. It sucks that it happened and we will have to live with the consequences, but it's not their fault.