AT&T Premier app

Hello everyone!! New to the AT&T community🤗so far so good besides the iPhone X preorder process. My question is why are Premier customers left out of having a convenient and up to date iPhone app? The app is so outdated and worthless I just don’t understand. MyAT&T app for individual account works and looks beautiful. Seems like AT&T would at least put the same effort into its business customers. Business customers couldn’t preorder iPhone X through the Premier app nor through Apple.com, very frustrating. Like I said I’m new to AT&T but just seems like priorities are a little backwards when it comes to the app. Just my opinion.