NAD+ precursors and MOTS-c have solid mechanism rationale individually but the combination evidence base is essentially anecdotal. 5-Amino-1MQ's data is even thinner. None of these have meaningful head-to-head comparison data that would let you evaluate whether the stack outperforms any single component.
The long-term data ownership concern is worth raising whenever a platform collects detailed usage data tied to specific protocols - the incentive structure of institutional money entering a research space is different from the community-driven model it displaces. Confidence in what happens with aggregate data in the next funding round is a reasonable ask before contributing to it.