Wire nuts tend to vibrate off in a vehicle while a house is not normally subject to nearly as much vibration, so wire nuts are fine for home wiring connections.
Crimping has been a vehicle industry standard for many years. All the light fixtures in my 1997 Bounder RV are crimped together. I never guessed at why, other than it might cost less, until the vibration problem was mentioned. Crimp on connections usually can not vibrate loose, and therefore are required in most airplane connections that are not a screw clamping the wire to it's respective connection.
Good luck with your project!
Fred.
