Good browser engine devs are very hard to come by. I expect they won't have too much trouble landing on their feet.
The unemployment rate her in Norway are around 3%[0], and probably 0% among it-engineers, so thus guys will be picked up right away.
0: https://www.google.com/publicdata/explore?ds=z8o7pt6rd5uqa6_...
I just don't understand what kind of crazy thinking would go into this.
It sounds like most of the engineers simply didn't want to move from core render engine and javascript interpreter development to more front-end client development.