You were an auto dealer. I was an auto *mechanic* for a while. Looked under lots of hoods. I'm in IT now, but the local Jaguar dealer keeps trying to hire me. Surprise!
Wire ends under the dash, where they will not be seen by the consumer, is less of an issue than EXPOSED WIRE ENDS LEFT IN THE OPEN IN THE ENGINE BAY. At the least, they scream "we didn't care enough to seal the harness." At the worst, they mean that the harness will degrade quickly in hostile environments, necessitating replacement of the entire harness, not just a connector or pigtail.
Other than the domestics, NOBODY does that sort of stuff.
I doubt it?