Man, I really want to love Millenia. It feels like it has so many great ideas mechanically (from the ages mechanic to how resources work domestically and internationally), it just seems really rough at the moment. The pacing feels off and the flavor comes off just bland (none of the civs seem to have much character).
If done instead of reducing current emissions, 100%. That said, there is a real need to invest in carbon capture technology now so that it can be more useful in the future. It’s a small part of the overall strategy to improve our climate future, but an important one as we get further along in the century and emissions already are reduced. So, yeah, if people hold up this technology and say “see, let’s keep drilling”, fuck that. But as long as it’s an “and” not an “or”, this is a good thing.