Not sure if I understand everyone's problem with removing iOS apps from iTunes. Starting from iOS 9, app downloads are now thinned—meaning the binary that ends up on your device is custom downloaded from the store for the specific device and not from your Mac or PC.
So if you're syncing from iTunes on Mac or PC, I believe just the "placeholder" of the app is synced over and the actual download of the app occurs on your iOS device so that it can grab the specific portions of the app for that device.
That is not the case, at least not in my experience. The full app downloads to the Mac. The full app is synced to my iPad. If the app does not require additional content there is nothing else to download onto my iPad.