It's speculation, because we can't forsee future. Saying game sold very well because of "marketing PR" ...what for is marketing?We'll see. If you go based on what little they have said/done since the game released it's not exactly going in their favor. And that was before the hacking scenario.
They sold some copies because of reputation, that for sure, but how can you say -without some data, what % of sales was determined by reputation of CDPR? You can't. It's not like reputation of studio helped them to peak W3 playerbase 5 years after release (and let's be honest Witcher Netflix, wasn't that good to hype any game). It's more complicated than that.