Well, we've had this confusion for years and innumerable posts on PPrune about 'what am I supposed to do'
I
can see major problems, but
maybe if we adopt the same mindset as we do on 'cleared for the procedural approach' where we do not set the
final platform altitude UNTIL it becomes appropriate, we might learn to adapt.
BIG question, however, is how is this going to fit with furrin visitors - do all ICAO procedures operate this way (in theory, anyway) or will this be a huge 'gotcha' for 'mr overseas'?