They also explicitely ask for criticism as their last project suggestion:
Critiquing our approach
Research That Can Help Us Improve
We’d love to fund research that changes our worldview—for example, by highlighting a billion-dollar cause area we are missing—or significantly narrows down our range of uncertainty. We’d also be excited to fund research that tries to identify mistakes in our reasoning or approach, or in the reasoning or approach of effective altruism or longtermism more generally.
Every project idea from the Future Fund is probably a useful goal to red-team as it might affect how a lot of money will be spend.
https://ftxfuturefund.org/projects/
They also explicitely ask for criticism as their last project suggestion: