When I said the placement of the callsign is irrelevant, I meant in this particular example, it is not relevant, what is relevant is the change to encourage pilots to state their intentions which the previous example did not do.
As for placement of callsign, please share where you believe this is mandated?
Because it isn't.
There is only one 'rule' defining the placement of callsign which is in PANS ATM at 5.2.1.9.2.2 — ''An aircraft station
should acknowledge receipt of important air traffic control messages or parts thereof by reading them back and
terminating the readback by its radio call sign. (Please note, it states 'should' not 'shall' so it is therefore NOT mandated, and, as yet, ICAO is not fully transposed into law).