You-dont-know-js: Is this sentence correct? Chapter 3 "Calling Too Late"

[DATADEER]

I found a sentence in Chapter 3 "Calling Too Late" that made me scratch my head.
(right below the code snippet)

p.then( function(){
    p.then( function(){
        console.log( "C" );
    } );
    console.log( "A" );
} );
p.then( function(){
    console.log( "B" );
} );
// A B C

_Here, "C" cannot interrupt and precede "B", by virtue of how Promises are defined to operate._

It looks to me, that it is possible that "C" can precede "B". If "B" takes longer to resolve than "A + C" the results are being logged in the following order. // A C B
So by design, promises do not prevent "C" from preceding "B".
https://jsfiddle.net/datadeer/7u0nk7fp/3/

Am i on to something, or am i missing anything?

[getify]

If the then(..) calls were on different promises, what you say would be possible. But in the example quoted, all then(..) calls are on the same p promise. As such, once that one p is resolved, all these then(..) registered handlers will run in a single first-come-first-served queue, which would then ensure A B C order.

[DATADEER]

That makes sense. I haven't thought about that. Thanks for the quick response. :)