Yeah I don't think it's surprising at all. They lost most of their key players/first team regulars in summer (Schlager, Wolf, Dabbur, Lainer, Samassekou, Pongracic etc.) and then Haaland and Minamino in winter; any team would struggle to replace so many important players. A lot of injuries too; I think they only had 4 fit players on the bench in their last game against Graz.
That said, it's still anyone's for the taking. With the points halved now for the Championship round LASK are only 3 points ahead and facing their own issues with injuries; they have been in their best form for quite a while and hopefully that continues, but there are still 10 tough matches to play...