All of those things factor into it being a scary situation. True freshman winning the job means that there's no one ahead of him better, which means development has been lackluster, which means subpar recruiting, which means...
In a vacuum, it's fine - may the best man win. But all of the things being in such a position implicates is really worrisome. And it's not like he gets to warm up - he's going to face probably the best defensive front he'll go against all season Game 1.
Stay scared, then