(same as when in 2nd WW allies made with german Enigma machine, they didn't refute all german steps to don't put on check the important advantage they already have.)
That example can be used to refute your post.
Such high computation power to break strong cryptography (at the time) is not easy to come by and is not available to everyone. It is always owned (in secret) by governments and is used for much important matters like state secrets and espionage not to steal bitcoins from a single address after a year of computation! They can press a button to print more money without spending anything.
By the time such capability becomes known, all systems will start migrating to newer and stronger algorithms and by the time the hardware catches up the old algorithms are a thing of the past. Like today that you can break the WWII era encryption on your PC, nobody uses such algorithms.
That's not to mention for the time being the computing power, known or unknown, is not close to be able to sold ECDLP within reasonable timeframe.