That's because you don't know how to crimp a connector. A GOOD quality crimp connector done properly will be 10 times stronger than the same connector soldered.
Vibration can cause a connection to come loose. Just because YOU haven't had it happen doesn't mean it's a good idea. If it was so good, the FAA wouldn't have banned it for use in aircraft wiring.
Sorry, but I DO know how to crimp a connector and anyway, an R3 isn't a plane, doesn't have anywhere even remotely
near the levels of vibration a plane does and doesn't have the potential to fall out of the sky if a vital connector disconnects.
I'm sure what you are saying, and what Redstone College/Embry Riddle/Etc. teaches, is true for planes, but: Plane and R3 = apples and oranges.
Plus, I don't solder wires to connectors
. I solder wires directly to each other. No connectors. I don't mean for them to be disconnected, ever. They're not going to come apart unless I cut them.
My soldered, sealed and heat shrunk (using hot melt glue lined heat shrink tubing) wire connections do not fail. Period. I was shown this method by a certified motorcycle mechanic and I've been doing them this way for myself and for friends for 45+ years; that's a LONG F****** time with ZERO failures!
And that's only on motorcycles. I've also done 100's on cars and even some on boats. Again, ZERO failures.
So, why so many crimps on a motorcycle, car etc.? They build to a price point and soldering is time consuming, so costs money. And, they mean for easy exchange of parts if one fails. Hence, crimping.
End of discussion....