The problem is, you are viewing it as a team will spend more on players to increase payroll. Let's use this example. Let's say the Marlins need to spend another 30 million to meet the minimum. Instead of spending in FA, they could just trade for a bad contract. They could add someone like Bellinger and they are at their limit. Moves like that won't improve FA, and that is what several teams will do. They will just absorb bad contracts and not spend to get better.