I can certainly see your point and have much sympathy for it.
However, consider the junior guys who are currently (in theory) sharing your roster pain. If senior guys are going to get more of what they bid for then logic dictates that the junior guys will get even less of what they bid for. All fine in theory but a worsening of the qol for the junior guys (all the junior capts will be bond free) may well be enough for them to quit and that will just make life even worse for everyone that is left.
I agree with your sentiments but they need to be applied imho only when we have sufficient pilot numbers. At the moment, despite lack of easy access to a seniority list, I think it is evident that we are very short of numbers.
This airline has reached, and gone thru 'critical mass' in its manpower problems imho and it is going to take something much more radical than incorporating seniority into roster bidding to fix.