I guess I am in a minority, since I actually liked the catastrophe?
I mean, we had a too long string of not suffering meaningfull setbacks, and this incident is just what was really needed to bring back some narrative tension.
I think I'd have liked it much more/handled it better if Gotrek and the engineers died in the battle for Vlag or something similar.
It's not only that they died, but because they died in a freak accident that I didn't even expect to be rolled for.
Mind, I don't blame Boney for rolling it, it's simply the style of this quest for there to be a lot more of rolls (some of them unforeseen) than that I would roll as a QM, but that's what makes this quest feel so dynamic and unpredictable and exciting.
It still feels like a bit like a hit under the belt, though, even the day after.