He's been without all of his best players for a month, so he has developed a way of playing to maximise his available resources. Nobody is claiming that this "style" of play is anything other than temporary. The fact that it has been a successful strategy during this time of depletion is testament to the manager's nous. Ancelotti is a pragmatist - which is why he has been so successful.
I'm all for a more expansive style of play. This is why I am so thrilled with the capture of James who, in my book, is the only player we have I'd happily cross the road to watch. We can all judge Carlo properly when he has his own men in the vast majority of positions. Right now he is having to make do with players largely brought in by people run out of the club. Expecting thrilling football from the current rabble is delusional stuff, right up there with expectations of a place in the CL. It's a work-in-progress that is undeniably progressing. Lots more to do.