I agree that it is an overly confusing section.
The outcome of both DISAGREE and FAULT is a safe thrust mode reversion.
The main difference I see, is during a DISAGREE, there is still useful information available from one of the TLA's that indicates a take-off setting. (see FCOM).
This is what directs that engine to continue to accelerate to/stay at the take-off thrust. For a FAULT it always reduces to idle.
After getting airborne, the remainder of the procedures are very similar for both types of failure.
Interestingly, I assumed that as long as you keep the A/Thrust in, you could keep the engine running as long as you performed an autoland.
This only seems to apply to the older aircraft in our fleet, not the new ones.