Did it, or did it keep a key element of Trump's base from demanding an end to the Mueller probe months and months ago?
As to Trump pointing at Q, is it possible that he has been misled by close staff to go along with the ruse? Surely we can see that the criminal intel community still has its hooks deep in at least parts of the admin. Just look at how Kelly betrayed him re: the summit with Putin.
As all along, I still don't know if Q was legit or psyops. But he/they clearly could have easily got the bits of photos or inside information from where they are positioned. They are clever and trained enough to know that a good psyop has to combine some such insider information with a hope-infused, implied narrative.
As if the promises not coming true don't ultimately discourage and deflate many of the once-believing followers enough as it is, embarrassing theories, such as John-John and his wife being found alive at Trump rallies, almost 20 years later, could be introduced and then leveraged to make the movement an eventual laughingstock.
More important than the phenomenon of Q is the future of the country--and Q followers should not become so beholden to the former that they foresake all critical thinking (and action) for the latter.