Go back and read the sentence you quoted, in it's entirety.
> there's rarely a discernible difference in revenue between a high quality release and a buggy, low quality release, but the profit margin of the former can be (and often is) much lower.
No, I don't. I don't believe there's rarely a difference in revenue between a low quality release and a high quality release. Further, PUBG, at least as presented, doesn't support this assetion, since it doesn't show revenue failing to increase after a higher quality release.
> there's rarely a discernible difference in revenue between a high quality release and a buggy, low quality release, but the profit margin of the former can be (and often is) much lower.
I think you agree with the OP...