Yes, this is my point: Incentive problems are real problems.

You can't just say "well if the incentives were different this would be easy to solve, ergo it's easy to solve."

No! The incentives are the way they are, and so the incentives are the problem. Broken incentives make problems effectively impossible to solve literally all the time.

"This would be easy to solve if the incentives worked a different way" is equivalent to an budding aerospace engineer saying that flight would be easy if gravity worked a different way. It's completely meaningless. Gravity works the way that it does, that's why it's hard. You don't get to just endlessly modify the parameters of the universe until you get to an easily solvable version of your problem.