Well, as comical and over-the-top as he is, the OP still does have a valid point. A mission-critical objective should not be impossible to achieve without having JUST the right build to proceed. Sure you can artificially boost your Perception using items, or recruit a Henchman exclusively for the purposes of spotting the button, but you'd only know to do so if you were somehow forewarned that it would be necessary.
This is just a case where there should be multiple paths forward, but instead the quest is designed to bottleneck at what effectively amounts to a single attribute check. Most players who fail that check won't even know that they failed, and will just continue on into Zone 2 becoming increasingly frustrated as they run into challenges designed for higher-level groups.
