I remember that, their set clashed with the end of Sabaton and the start of Avantasia.
Bad times for anyone who wanted to see all 3
Power Quest had a 75 minute set, the start of which clashed with Sabaton, and the end of which clashed with Avantasia, but there was a good 40 minute chunk of their set between the two bands when there was no one on stage.
Even after Sabaton had finished, there was still only a handful of people watching Power Quest, the field was absolutely packed out when Sabaton played, and exactly the kind of crowd that PQ would have potentially appealed to, but hardly anyone went into the tent after Sabaton to check them out. Even if Power Quest hadn't clashed with Sabaton and Avantasia, their crowd would have been minimal, sad to say, but people just weren't interested in seeing them.