alt Hacker NewsWell, no. The locksmith paradox is where a skilled person can walk up to a novel problem and quickly solve it, irking the customer who paid a large sum for the results. Here the thieves almost certainly didn't trip over the Binance vulnerability and solve it in 20 minutes; they planned and researched this task for a long time before executing.
If you want to get that narrow, then why not dismiss my comment by saying that they are not literal locksmiths? The locksmith paradox is about underestimating the expertise behind a quick result, and that expertise can include extensive preparation.