Humans are exceedingly adept at determining fairness and adjust their own actions to match fairness levels[1]. If you pay for something and becomes unavailable, because someone else messed up and effectively lowered the value of your purchase[2], there is a simple argument to be made that maybe lack of ethics on one side is almost negligible when compared to that of a multimillion faceless conglomerate. In other words, it may be unethical, but it is hard for me to argue that it is not warranted.

[1]https://www.apa.org/news/podcasts/speaking-of-psychology/fai... [2]https://www.polygon.com/2018/4/27/17292836/gta-4-soundtrack-...