Success message when adding contacts to campaign

When in the CRM, you get a 'success' style message as soon as you've added contacts from a Report into a Campaign Activity (see screenshot). Given that in actual fact the contacts have not yet necessarily been added, I think we shouldn't display this message, as users will think it's much quicker than it actually is. Also, when users go from the Report to the Campaign Activity and go to the 'Target Contacts' tab, they will see that they're not actually there. Wouldn't it be better to say 'Your contacts are now being added to your Campaign Activity' instead, then another green success message pops up when it's actually complete? I imagine this wouldn't be easy to do but think it is more in line with what is actually going on in the background.