I would agree with that if anything about this show suggested it was risky or edgy. I get the exact opposite impression. This one seems like it was programmed primarily because the names involved would sell subscriptions.
Nothing makes me more delighted than to see theater compared to Ninja Warrior :-) , and it is true that writing a good musical is as hard and as rare as finishing Stage 2 (never mind Stage 3 or Mount Midoriyama), but I still watch it to see people succeed. That's actually one of the reasons that I don't watch any of the qualifying runs, because most of the competitors aren't qualified enough to hit the buzzer. And yes, it is compelling to watch a great run fail at the cusp of victory, but Superhero seems more akin to watching Geoff Britten slip on the first obstacle after finishing Stage 4 the year before.