Some Triumph models for the U.S. have been assembled in Thailand for years now which makes sense because a lot of content was local anyway. The majority of plant managers are from Hinckley and the QC is the equal to or better than Hinckley. This move has helped to keep Triumph competitive with the Japanese brands and few here appear to find this a turn-off.
I understand that quality may not be affected in reality, but Triumphs are a value proposition these days. e.g. Street Triple costs AUD14k, 696 costs AUD15.5k. There aren't many (any?) 700cc nakeds (air cooled 2 valves no less) that cost $15,500.