They are in effect more like the guys who stand around a cup and ball scam to make it look like there’s action and winners and keys you think you could do better.
A buyback is a removal of the security from the market, not participation in the market.
It’s like people buying their own books to drive up sales in order to get in lists to promote more book sales, which is when they then supply the market with the books their bought once the price has been artificially elevated and has become sticky.
You may not like hearing that and it’s clearly not the mainstream street preferred narrative, but that’s what it is.