I hear you.
I am obligated to ensure the connections I make on customer boats are ABYC compliant.
I agree with the ABYC standards poo pooing soldered connections, because their integrity is so dependant on operator skill.
Anyone can botch a crimped connection, but it is many times less likely to happen if quality ratcheting crimpers, designed for use with that specific crimp connector, are used.
But even the crimp / crimper manufacturers state that the crimp connection "cold molds" the strands within the crimp (essentially making it a solid conductor).
Many years ago, I demonstrated to an AECL inspector (much to his surprise and chagrin), that I can consistently make a soldered wire splice that is much stronger than a crimp connection (the latter that meets standards for use in electrical panels controlling nuclear power stations).
My recommendation - Always follow applicable marine electrical standards (ABYC and NMEA in North America).
In doing so, treat a crimped connection exactly as one would a non-compliant soldered connection...
1. Apply a pull test to every connection of recommended tensile force (independent of heat shrink).
2. Apply sealant to avoid moisture contact with the conductors.
3. Apply heatshrink as a reliable protective dielectric insulation over the conductors and extending at least 5 diameters beyond the ends of the insulation.
4. Provide strain relief to both ends of the connection.
5. Secure cables per standards and best practice.
In my opinion, relying on heat shrink for a good portion of the tensile strength (as in the case of the subject connectors) is just asking for trouble, in the form of broken connections inside the insulation.