I don't have a problem with the fact that all these people have producer in their job title, I just think it's stupid they are all in the opening credits. I just watched the Game of Thrones credits, they also list a bunch of producers, about 13, but I've never noticed in 7 seasons. For some reason the Discovery titles just make it stick out annoyingly to me, hence my complaint about the aesthetics.
Game of Thrones also has a shit-ton more recurring and regular characters and actors than Discovery, so the names in the opening credits fly by much faster. Also, this show is produced all over the world, they film in Ireland, Malta, Iceland and others all at the same time - so it's obvious there need to be more producers to be on locations.
DIS on the other hand mostly films everything at the same place, in Vancouver (with the one exception of location-shooting in Jordan). I think, without any form of condemning it, that this really, simply IS the result of the early production troubles, where some writers, who normally would be just "regular" writers, were far more influential in shaping the product to it's final form than they usually would be. Add to that the booted executives, the "honorable mentions" (Meyer, Rodenberry), the ones owning the rights and production companies, and you got yourself a whole lot producer credits.