I've reached this point in the timeline, and I am a bit baffled, and the accompanying note hurts my brain.
The math based on the information available points to the attack on Fitz and Enoch's ship happening weeks before the timeline split at the end of Agents season 5. This raises a bunch of problems that require a bunch of assumptions not otherwise hinted at by the show.
Isn't it much simpler to simply assume that the numbers we were given pointing to the date of the attack are wrong? That sometimes happens, after all (such as Homecoming's "8 years" and Runaways' reference to 2019).
Either way, that's the assumption I'm making in my own version of the timeline, where I'm placing the attack very shortly after the timeline split (my *only* deviation from the Wiki's timeline).