Why use an SAE plug on the taillight?

Back to doing a little more on the '68 Fastback and cleaning up a used early wiring harness to use as a template to build a new one. I came across a two prong SAE plug that looked like it was original so took a close look at the wiring diagram and sure enough, there is a molded SAE plug on a short lead from the main harness that connects to another lead with a matching SAE plug and N and N/G wires with bullet connectors which connect to the taillight/brake light.

I can see no reason why Norton would use this SAE plug on '68-'70 harnesses rather than a continuous lead to the taillight as was done from '71-on. And if they did want a separate lead, why use an SAE connector rather than another set of bullets?

Am I missing something? Does this SAE connector serve some particular purpose? I have to believe it had to be at least a little more expensive than crimping on a couple more bullets.

Ron L said:

Am I missing something? Does this SAE connector serve some particular purpose? I have to believe it had to be at least a little more expensive than crimping on a couple more bullets.

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I don't know why, but Lucas did the same thing on some Triumph harnesses. Pretty sure Lucas made the harnesses, not Norton.

Yes, Lucas made, but Norton designed. Triumph harness is not the same as a Norton. Some wiring diagrams might be though.