Keep in mind, marketing demographics aren't just based on binary "do you like it" kind of measurements but rather a huge amount of cross referenced points, and Josh Sawyer didn't go in to deep detail, but the comment itself was interesting, to suggest how little crossover there is.
It correlates with the poll from PC Gamer where there is a very unusually clean split in preference between combat systems with a 46/54 split which almost does make it look like a binary split.
That's why I was interested in what his comments meant. A lot of gamers will try something they are not sure of ( although perhaps later in the lifecycle, and at a discount ), but can't then be relied upon to buy subsequent games in a series.
Sometimes it is as simple as a preference for some mechanic or other, but generally it's more about whether the game was enjoyable or not. I bought PoE, didn't finish it, so was obviously not waiting with 'bated breath for Deadfire ( particularly as the Deadfire marketing stressed pirates, which are a turn-off for me ). I think I have subsequently bought it in a Steam sale, because I think I will eventually go back to finish PoE, as it had some redeeming features.
The same is true of D:OS. I tried it, didn't finish it and therefore didn't buy D:OS2. But alhough I prefer RT, the combat system alone wouldn't prevent me from buying a game. The problem with D:OS was that I didn't get engaged by the world, the story, the character system, the item system, or aything else. The one good idea D:OS had ( environmental interaction ) was ruined through over-use. I don't know that I will ever go back to finish D:OS as there are so many better games available.
But not liking Original Sin games does not mean I won't like BG3. At the very least, it has a great setting in the Forgotten Realms, I have hopes that their story-telling has improved ( the higher production values will help here ), and although D&D has gone downhill since the early editions, the character and item systems are still better that Original Sin.
This is why I am surprised that a "typical gamer" might be considered to be rigid and inflexible.
