The calculation is fun but you need a couple more zeros on the flow rate . The iceberg split was over 100 feet long and busted rivets went much farther. To be meaningful you would have to step up to more like 25,000 GPM flood rate. But there's plenty of evidence the whole bunch stood around like dunces. A few engineering students might have helped. My thot over the years has been that getting at least some people onto the berg and rigging extra floatation should have helped. But now everyone would just be shooting video hoping for the best!
Interesting suggestions upthread bump