Hi Alexandre,
Without reliable behavior from the FrameMaker notification, I think your only option would be to have Sourcerer or ABCM modified to send you notification on their own.
You could ask Sourcerer IT if they would be willing to modify the product for you. If not, I could probably modify ABCM to send you notification. As it stands currently, I don't think you'll see any better results from ABCM, since the source of your problem is FrameMaker and your EDD.
I know you don't want to do it, but I'd recommend reconsidering an update of your EDD. It sounds like the problem you are seeing is due to formatting rules that take over once certain elements are filtered out. If so, you would have this problem, then, whether you used ABCM, Sourcerer, native conditional text, or any other method of filtering out content. This makes your EDD fundamentally incompatible with a conditional-filtering type of logic. Even if you hack up something just to fix this one problem, who knows what might pop up in the future when you filter out some other type of element.
Russ