EBA’s in some blue collar industries might have such a clause that you speak of (I’d be curious to see one), but we work in an industry where we’re paid six figure salaries (and are arguably unique being “white collar” workers protected by an EBA). No airline in their right mind would allow for such a clause as you speak of, it could ultimately be the difference between profitability or not, or worse.
Tug boat drivers and marine pilots are a profession that I would argue is at a similar profession level to us, get paid similar (more than the base of any FO in Australia, and most captains besides the red rat), and have this clause in their EBA. I don't see the ports going under because they can't turn a profit. You really do speak like a true manager, which I am guessing you are based on your continual distain towards improving workers conditions.
I'm not talking about woolies or maccas workers here.