I would rather they be open about their failures than deceptive about it. Of course simply not failing would be ideal, but we don't live in a perfect world. If a single, external point of failure causes your system to crumble, that's a design problem, not a dependency problem.
To your point, Cloudflare leadership are pretty active on HN. They generally do a pretty good job of providing detailed explanations to good-faith questions here and providing decent post-mortems of major incidents to the HN community.
They do take care to avoid engaging with people who are opposed to their dominance on ideological levels ("no one should be the gatekeeper for that much of the internet", etc) and there are a small handful of questions they seem to avoid (e.g. direct feature-to-feature comparisons between Warp and Mullvad)
They use transparency as a cover for rookie mistakes it's not the same as actual transparency. Especially as these are really bad examples of doing it wrong.