I think this^^ is what's making me think the owners don't actually want to reach an agreement. When someone is bargaining in good faith they take what's already agreed on as a basic skeleton and then move on to flesh it out. Both sides make a few concessions along the way until both sides (individually) decide they want to come to an agreement. To oversimplify it, it then becomes, "OK, I can do this if you can do that", and "I can give you this but I need that in return" and after a few back-and-forths agreement is reached.
I say it's an oversimplification because negotiations isn't simply exchanging offers, it's listening to what the other party wants and respecting that. The players have said very loudly what they want - an abbreviated schedule with prorated pay - and the owners aren't listening. Instead the owners are still in the 'throwing stuff at the wall and seeing what sticks" portion of negotiations. The're stalling.
At this point I have to think that the holdup is more over principle than money. IMO there is some other issue in there that we don't know about that is holding things up. As someone once said, "Disputes over money have a way of getting settled but disputes over principle can go on for a long time."