Yeah, it's all just PR and negotiating tactics. At the end of the day, no one can force MLB teams to give Williamsport players. It's done by mutual, if negotiated, contractual agreement, and MiLB doesn't have all that much collective leverage. It's not like the AAA and AA markets are going to refuse to stay in business with MLB to help save the Pioneer League. And as Cooper wrote:
Minor League Baseball does not have a lot of clear avenues for response. In these negotiations, MiLB can try to use public opinion mixed with potential Congressional pressure to “save its teams.” MLB also faces the potential for a long list of lawsuits from both teams and municipalities affected by the potential reductions.
But MiLB doesn’t have a truly viable option to walk away from the negotiations. In a nightmare scenario where no agreement is reached before the 2021 season, the current MiLB system would likely shut down. MLB could keep its players at its spring training complexes in 2021, playing games on the multiple back fields at each facility. In 2020, it’s unrealistic to believe that MiLB teams would counter by fielding teams of players they procure themselves for 2021, turning the leagues into quasi-independent leagues.
That scenario is surely unacceptable to MLB too but they hold all the cards.