[timroy]

Can you explain what you mean by "it simply gives the author's a narrative to fake"?

At the very least, pre-registration helps guard against the "file-drawer" effect, where a negative result simply goes in the trash, and no one ever knows it occurred.

If you mean that pre-registration will not prevent jiggling the results until the researcher gets a significant p-value, then I agree that many forms of pre-registration which lack registration of the analysis and so on will allow the authors to fake the narrative.