Yeah, i think that is fair to say. In the end its about what makes the best choice in generating income.
Theres also no way to say how much effect RE7 alone had on the sales though. RE6 came out almost exactly 5 years ago (early Octoboer 2012). If Capcom had made RE7 differently than what they already did, maybe made it more like RE6, we dont know how much it would have sold then. Several of sequels have declined in sales despite having similar design/mechanics and we could have discussed that the reason for this was because the game was too similar and didnt feel fresh. And if Capcom couldnt afford another RE6, what would be another solution?
RE7 was in developement before P.T was released by the way. The producer of RE7 claims that the first person view idea was already set before P.T was released and the team hadnt seen P.T at that time:
https://gamerant.com/resident-evil-7-silent-hills-803
As the article also mention, its possible that the RE7 demo was inspired by P.T however.