deSitter, two comments about that link about demanding all A330s be grounded:
1) It's Speigel, which news service does not have a sterling reputation for their handling of this crisis, so far.
2) The A330 has a safety record that any earlier airliners more than a few years older than the A330 can only dream about. Shutting it down on a 1 in a million accident is past foolish. It's damn foolish.
I'm tempted to add a third item - it's Spiegel.