Also keep in mind that we have a huge amount of work to do on various subjects, hence we sometimes take a bit of time to deal with subjects.
Now, to answer your question:
but at this time we need two validations, one for add and one for campaign. this means also twice work for you.
No, you're wrong on that point. First, you create an Ad (ie. image+link+title) and it gets validated. Once your ad is validated, you can create as many campaigns as you want with it (though it can get recjected at any point if you modify your Manialink and it doesn't follow the rules anymore).