In a conversation with Kier I had a while ago, he told me the intended design of the ACP tabs was that only XenForo would include the main tabs in the top, while "Applications" was designed to have an extended sidebar for each add-on. Obviously, some add-ons (I see a CMS being one) could require / utilize a top tab, but many I can't see needing them. I see you have a "Create New Phrase" tab... Is that REALLY needed? I was able to turn my "tab" into a side bar without much trouble.
The issue is really over zealous use. I'm not saying against it, but we as add-on developers should only utilize them when absolutely necessary. Open up "Project Tools"... how many options are there? XenTrader? I don't use them, but 90% don't require a tab.