That tears it. Ok guys, break out the pitchforks and the tar and the feathers. GET HIM!
The headlight bypass relay kit is actually to minimize voltage drop between the battery and the headlight bulb, primarily. After making its way through a bike's original harness you can, on some bikes, see a not negligible amount of voltage drop due to resistance. Every 0.1 of a volt measurably increased the brightness of a Halogen bulb. They
also helped early Rockets by lowering the general current flowing through the keyswitch (instead of the full power to the headlight you now have a trickle that's all that's required to activate the relay that then allows power to flow through cables connected directly between the battery and the headlight.)
But no, the R3T is not a piece of junk. The engine and transmission are fine designs that I'd rate far, far above your Harleys for example. People just casually talk about "carpenterizing" their bikes, ie taking the 106 HP and just doing no changes at all to either the gearbox or final drive and taking the power to 290 HP. Think about that for a second. If you took a Harley and raised its horsepower to 290 HP (not that you can), it would probably rip the rear wheel loose and beat you around the head with it the first time you gave it the beans, as the saying goes.
Sure, some parts are bargain basement, like the hand controls. This is the stuff Triumph wants to sell you nicer versions off. Some design choices are debatable. The standard shocks are kind of blah, but again, nothing shocking there as all OEM's are hunting cost savings, that's why there is a vibrant aftermarket for bike shocks.
I for one have taken my bike on multiple long runs, including an 8-day ride through three separate nations, and the only issue I had was that my rear brake stopped working because I was unconsciously panic braking all the way down a mountainside and caused the brake fluid to boil... once it cooled it was fine.
In the US, there is one big downside from what I gather and that is the lack of dealerships, relative to Harley at least. You can find a Harley dealer on every street corner. So if the bike does break, you need to have a plan for that beforehand.