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.
Not really though.
Perception above 8 already shows its value in many ways even in Cyseal. If you don't have 8 Perception in Cyseal you get mangled by the minefield on the beach for example, let alone the insane amounts of chests that you miss just in that area. If you have some knowledge of gaming and RPG's like this in particular, this would already direct you as a player to focusing on that attribute because it seems quite vital to progress safely.
So yeah. I can only blame the player, not the game. The game forces you to figure this stuff out, players are there to help you when you're stuck, but don't blame the game for your own lack of insight and experience.
Case closed.