It's not trainers or their leaders who will decide this once the need arises and parking airplanes becomes a threat.
But sure he told you what you wanted to hear, or every prospect F/O would like him to say.
Please understand that doing RHS ULH for 7 years and raising small kids in the sandbox while being a remote dad is not the top choice for many. There is a reason why Wizzair is not short of applicants while paying 10k USD less.
You have been long underlining the good points of EK here, while 0 row seat is still only an aspiration. Fair play, the good points are numerically underrepresented.
That does not alter the validity or gravity of the bad points. One of them being that command upgrade for an FO without relevant previous experience (OP's) is long years ahead and course availability is a gamble far from assured.