Perhaps the company is concerned about the regulators (SEC). I say, to hell with the regulators; if the SEC isn't going to do anything about the lying hit pieces and incessant attacks on the company, then they should not look negatively on the company promoting its proven successes.
I think that the touting comes with phase 3. They don't want to embarrass themselves if they end up being wrong. A larger study will give them more confidence, but I do agree...more clarification in PRs would help.