Yup, and those are garbage - for the reasons you've identified. Marine grade or bust. Look I'm no fan of crimps but you're giving terrible advice here.
Never had trouble with the completed soldered/crimped connections for decades. I use them in my car. With crimp-only, it's only a matter of time till I get erratic connects. It's particularly irritating with the stereo, as the speakers go in and out or suffer the crackling with a loose connection.
