It's always unpleasant for anyone to lose their job, especially if they have gone above and beyond.
On the other hand it's entirely reasonable for new owners to bring in their own people, and want to make significant changes from the clusterfuck that handed control to them in the first place.
It looks like an interesting project, and it's a quite unusual appointment for a team at that level (very young, elite level experience - albeit not in the hot seat, a cultural departure from the rest of football in this country). I shall keep an eye on them with interest, and hope that for the fans it goes well.