In this view, the ideal world is one where copyright is abolished (but not moral rights). So piracy is good, and datasets are also good.
Asking creators to license their work freely is simply a compromise due to copyright unfortunately still existing. (Note that even if creators don't license their work freely, this view still permits you to pirate or mod it against their wishes.)
(My view is not this extreme, but my point is that this view was, and hopefully is, still common amongst hackers.)
I will ignore the moralizing words (eg "ruthless", "harvested" to mean "copied"). It's not productive to the conversation.