Your post (and the link within it) names tools that will do a 360° (hex or diamond) crimp (and you show a cross-sectional of one a couple posts later), it doesn't directly mention the importance of it. Without emphasis on this it tends to slip by without notice. There are several mentions of a hammer-crimper in the thread your link is from (which you did say you didn't care for)... This is the very tool that was used on many of the ones I've had fail/burn up. It creates a double-standard when you say soldering has all these caveats to getting a good connection while "forgetting" that crimping has just as many (if not more) caveats.
I'd be extremely surprised to see a terminal crimped onto an oxidized wire be even half as good as one crimped onto a clean wire. Oxidation is non-conductive and may be porous too, so all you're doing is crimping a layer of insulation around each strand into your connection and creating a failure point.