Back to the inicident, I think DC got it right in the commentary on the spot. What vettel did was legitimate but high risk and was the catalyst for taking four cars out of the race.
Personally I think the violent sideways lunge is a dick move, people have very nearly been put into pit walls on main straights at the thick end of 300k by drivers like Schumacher doing it and, while it’s pretty hard to use the rule book to stop it, it relies too much on everything being as the swerving driver optimistically expects it to be, and it’s too often too close to a massive incident.
It seems pretty optimistic to think that doing it on a track that no-one’s raced in the wet before, trying to close out one of the best wet drivers, with another eighteen drivers right behind you (actually seventeen, which was Vettel’s mistake), would have a high chance of going well.