> Further research with a placebo-control arm is warranted
IIUC they don't have a control group. They don't have a control group!!! Reading again your comment, you wrote this in point (3) and (3b), but it needs a few more exclamation marks.
Again, parent poster mentioned this but as you say, more exclamation marks are needed.
> Further research with a placebo-control arm is warranted
IIUC they don't have a control group. They don't have a control group!!! Reading again your comment, you wrote this in point (3) and (3b), but it needs a few more exclamation marks.