From the games I've seen they outplayed Vienna fair and square. The SOG disparity can be chalked up to score effects and gameplan as they were leading for the most of the series and didn't mind sitting back a bit when they did. Vienna with and without Holzapfel is like 2 different teams though, sucks for them he got injured.
Series against Salzburg is a different story though, they were flat out lucky to win the game 1 (3rd period of that game was like 20 minute long PK) and game 2 went the way it was supposed to. You can see Bolzano not really having answers to Hughes or Muller. I think this magic run is over, Salzburg will win the series in 6 games at most.