Chaser,
Unfortunately, I'm not hypothetically suggesting that they would now try to delay receipts. They've already agreed to that kind of schedule.
We just don't know how much money is to be paid each year. We are definitely looking at years to get all our money --and that is assuming the equitable distribution process as you described. While they have to distribute as per your quoted material, they don't have to distribute money that they've yet to receive.
"(b) the Settlement Amount will be paid in a series of instalments, which include a series of up front instalments, recurring monthly instalments thereafter, and annual instalments until the Settlement Amount has been fully satisfied"