Traditional Buddhist morality is obviously wrong. But the Buddha was enlightened, and Buddhism is the correct religion; so it seems that, due to some minor mistake, the tradition does not represent the true Buddhist ethics.
Since we know what is ethically correct—and Buddha would surely agree!—we can fix it for him. That is the principle of FTFY Buddhist ethics.
[Note to future historians: “FTFY” is 2015 internet slang for “fixed that for you.”]
Current “Buddhist ethics” is identical to current Western leftish secular ethics. How can Buddhist leaders pretend that it has anything to do with Buddhism? How can traditional Buddhist moral teachings be explained away? FTFY is the main rhetorical strategy.
FTFY ethics explains what the Buddha would have said about something he didn’t discuss. For example, we can easily see that he would have approved of homosexuality. Also, he certainly would have supported intellectual property ownership.
Also, the Buddha got many things wrong, for various excusable reasons. However, we know what he should have said. For example, he surely knew slavery was wrong. However, he had to work within the constraints of the existing regime, so he had to endorse it anyway due to politics. How fortunate that we can fix that for him!