I think people tend to read too much into how they handled Kreis. There are so many differences, and I don't think we can expect consistency even to the extent the parallels are strong.
So yes, Kreis got to the end of the season, but, that also coincided with a full year for him, and remember he had a first-half roster that was significantly more crappy than it was even at the end of the season (no Pirlo, Lampard, Iraola or Angelino). As bad as the first half was -- firing him before those guys showed up (and especially after management deliberately withheld Lampard) would have signaled massive instability. Only the desperate would want the job. In contrast, Dome took a top tier team and (assuming no improvement) will have ran it into the ground over a full season of games by midsummer. Sure, it was disjointed between 2 seasons but it's a fair enough shot.
On the other side, I don't think that CFG consider themselves bound to fire a coach for failure to make the playoffs just because they mentioned that as a reason for Kreis, so even if the team stinks, Dome could survive all season, and come back next year because they're just going to do what they want.
There are a bunch of other differences too. I just don't think the Kreis situation offers much insight into how they will handle the current problems.