This TA will not reduce the need for as many reserve pilots and her's why:

The increase to max reserve resolves the situation in a category with long
trips in which a reserve pilot with, for example, 30 hours for the month cannot be assigned even a single rotation without taking him/her above the ALV, which
is currently max reserve. The staffing formula is designed to require enough reserve pilots to cover about 60 hours
of flying each. In any rolling 12-month period, if the average reserve pilot flies less than 60 hours, the staffing formula requires incrementally fewer reserve pilots in succeeding months. If, on the other hand, the average reserve pilot flies more than 60 hours, the formula requires incrementally more reserve pilots. The more reserve pilots fly, the more reserve pilots are required. In other words, if the increase to max reserve causes reserve pilots to fly more, the staffing formula will in turn require more reserve pilots, which will subsequently reduce the aver- age flown by reserves.