The vettle/Webber collision, was caused by Lewis hitting the brakes, the video shows that quite, clearly. he was very lucky to get away unpunished with that.
however, his comments regarding Webber, i kind of see where he's coming from.
i thought something similar when watching the race.
in the laps prior to the accident Webber was constantly very close to the back of him (and before anyone says it, this was without the help of lewis's brake tests). which given the conditions, and the fact that the safety car wasn't even coming in at that point, seemed unnecessarily risky(lewis had already been hit by someone he couldn't see). though as i said, what happened in the end was lewis's fault.
With regards the punishments dished out, i think the stewards need a bit of rethink of how they apply the rules, as some of their decisions didn't make sense.
In conditions like that there are certain things that happen that may result in a penalty in bone dry conditions that the given wet + poor visibility some degree of leniency has to be applied. (eg kubica)
But then there other things that wouldn't result in a penalty in the dry, but given the increased dangers of driving in that sort of weather, a harsher tone needs to be adopted. (eg hamilton's brake tests)
maybe some sort of 'wet weather charter'? or at least a clarification of what is/isn't going to be allowed.
tricky to decided exactly what would or wouldn't be permitted and exactly when to allow it i know, but that would certainly have to be better than the pick 'n mix approach they seem to be taking at the moment. a bit of common sense would go a long way.