I don’t have kapton tape or want to cut wires as I don’t have a spare sata power cable. However I do have a molex power cable and a molex to sata 3.3 adapter that came with my Seasonic Focus GX-750 PSU. It only has 4 wires and does not contain a wire for 3.3v power. The sata connector is crimped and not moulded. My shucked WD180EDGZ-11BLDS0 seems to require the 3.3v pin fix.
Even a soldered (“molded”) connector is fine as long as it is well made. However, it can be tricky to know if it is or not. Crimped connectors seem to be of better quality on average
If it was included with your Seasonic PSU I would totally trust it.
Good to know, thank you.