So basically solve a problem with another problems (trusting
a foundation)

Automated checkpoint every
n blocks (between 144 - 2016 should be good) is simpler and more effective (for 51%+ attack and history manipulation, not selfish mining).
Besides by trusting
a foundation, there's no point of consensus method or even decentralized system. We might as well turn back to centralized system (e.g. bank).