Don't think so. There's no merit to them in the past cause surprise, surprise, bitcoin's worth nothing back then. Only as the coin gradually increased in value and appreciation did people come to realize how bitcoin is vulnerable to 51% attacks but way back then we didn't have to worry cause why would a large corporation buy 51% of the total supply of a currency which doesn't even go as high as a dollar in value? Plus to add to this there's not even that much of users in the past so jacking the price up will be a herculean task which would require this company to fork out even more money in the process, yielding a negative payout for everyone who'd try this in 2009-2012. Of course as time goes by it became apparent that bitcoin is valuable and the idea of a 51% attack became more real, but as it stands today unless you have a trillion dollars just lying around, I don't think you'd be able to buy bitcoins to that degree that you'd have supreme control over it.