I have an 07 classic, silver engine. 35000 miles. Previous owner put on 30k of those. He said the only things he did to it was tires, batteries, & oil, as well as a relay for the cooling fan. I have had 0 problems with it.
I just did the valves, had to change 5 shims, and I'm guessing the timing chain will be good for another 30k. There are owners here with a lot more miles than that.
I'm not a fan of consumer reports. Now i don't think triumph is as good as Honda at qc, but if you like the bike (and how could you not) i wouldn't worry about it. A used bike is likely to have had any issues worked out already, and there some really knowledgeable rocket surgeons here who are happy to help.