Trentmøller was absolutely into doing his thing, which makes all the difference for me. I'm sure he had a lot of naysayers when he pitched the idea of pitched the idea of moving from authoring minimal techno tracks to doing a live show, and this was clearly done out of pure enthusiasm for the prospect of such a performance. And everyone he selected to back him up was clearly a fantastic musician (it's not often you observe a theremin player who can actually hold a tune if she wants to).
Unfortunately, the show was only an hour long, including the encore. This clearly wasn't a venue restriction, as Trentmøller went off at 11pm and I've been to shows there that went right until 2am. Boston fans, often burned in this way, seemed to be steeling themselves for this based on the pace of the show, and therefore were not as enthusiastic as they would have been based purely on the mind-blowingly awesome quality of the performance.