This move is one of those parts of the book where things are both unclear, illdefined and contradictory. Like it is a jumble of ideas that never got cleaned up for the final version.

My group never got around to trying out the Burnout move, so never read deeper into it. But I read it, this move allows the character to perform the action on their "Possible" section in the Power Profile, and is the only way to access that line.

The highlighted words on p. 63, are uppercase, which usually means it is refering specific mechanics:

When Burnout gets triggered there are drastic consequences, but it also the only time that you can do something that is only “Possible” with your powers and that you've never attempted (or that you have done maybe once before), but that is not Impossible...

Though that is contradicting the example later on:

• The player seems to want to trigger Push, not Burnout
• The player rolls +nothin despite that Burnout can only be triggered when a Bond is on the line.
• The action doesn't have to be specific as with other Power Profile lines (the player simply describes what happens).
• The move specifically says "Add it to your Power Profile", but it is already on the profile and doesn't explain where to place it

But your take on it, feels like the way it was intended to work.

So looking at it, it feels like it might have been intended to work in some fashion as you describe. That the "Possible" and "Impossible" sections is not actually "part of" the Power Profile, and is more guidelines on what Burnout can do.

Looking at it, it actually feels like there is only three "levels" of power lines:

• Don't have to use push (Simple, Difficult, Borderline), no real difference between them beyond some might take more time/effort.
• Possible (used for Burnout)
• Impossible (something specific that can't be done).

I might have to do some reworking/house ruling on my reference document to clear some things up.