Good question. I suppose it's to keep the "high ground," and continue to throw problems at the DS. Presumably it's still needed, and without the vaccine the DS would immediately double-down on more lockdowns "because there's no alternative" while they ratchet up the smaller control mechanisms making opposition progressively more difficult before re-releasing the vax again.

I think the mere existence of a released thing called a vaccine changed public perception around the world, and changed the battlefield more in our favor. So I think it was a good thing to do at that time. I don't know what the benefits of continuing to push it are.

I don't have the answer, but I think this concept is a part of it. My comment was really my way to summarize the thought in different words, and think about it more.

There's another theory out there that the vax's purpose is primarily a filter for society to somehow find and root out, maybe even neutralize, dangerous MK-ultra players. I'm not sure how that would work, but according to that theory all the people saying the vax is deadly are doing it to promote division and create a different rift for civil war- meaning Trump is prioritizing civil unity and calm by promoting the vax. This theory works best if the vax isn't dangerous, but it could be true even with a dangerous vax: it would be like how chemotherapy (supposedly) works--- poison yourself to kill the cancer, and if your timing is right and the body is otherwise strong, you win despite the poison and because of it. Another commenter made a Q reference which might prove that theory out (search 'sacrifice' on the comments to find it).

But I don't know the answer. Still trying to find out.