Would it matter? It's still not the end all be all answer to hair loss.
He doesn't owe people anything. I think this is what people miss the point with the most. It's at a research phase. When there's no progress. There's nothing to report. Best case scenario at this point is if they concede it's a failure. Then maybe people would stop expecting things from them. Research never stops, but progress towards a goal is different.
Don't put your faith too much on these research cures until proof comes out. Keep your health in check, rely on current methods, may it be drugs, pieces or SMP, just take those. Those are options, and good options might I add.