We have thumb drives that can store petabytes of data?
Or did you mean the "big data" crowd which thought 500GB was noteworthy? I don't think anyone took those serious, neither in 2010s nor now. That was always "small" data
Most companies using term "big data" had datasets in TB region. One company I had a gig at had full Hadoop cluster setup and their whole dataset was 40GB. Their marketing had all the big data adjacent keywords over the brochures for clients.