What kind of connectors did you work on that were soldered? I was an aircraft electrician in the TXARNG. I mostly dealt with cannon plugs and wire repair. Everything was crimped.
Almost everything I've worked with on my track car has been crimped with the exception of the connectors for my digital dash. It used a very small DIN like connector for use with 22ga and 24ga wire (those solder cups were small!).
I also don't like the use of bullet connectors for the motor for the reason you describe. I just would like the RX8 to have the same type of connectors used on the MMM (the bullet connectors are on the ESC itself).
Shipboard connectors on the Arleigh Burke Class destroyers for the Aegis Weapon System that ran from computer weapons consoles for data signals like NTDS parallel and serial cables to CCTV video cables for cameras that monitors vertical launching system. All quick locking type connectors. Items that connected to computer consoles for headset and microphone activation to all the feeds for differing data types including IFF challengers for aircraft.
Component board level was simply plug and play. This reduced downtime for the ships weapon systems. All backplanes were done through wire wrapping methods on posts.
The female connectors that connected to these were all soldered:
