I think the distinction here is, Reeves has to walk the line between bond investors and the back benches. We, as tax payers, are not part of the equation, currently.
To satisfy the former, she needs to increase taxation (and to increase the fiscal buffer), and to manage inflation.
To satisfy the latter, she has to throw them red meat in the form of additional welfare spending.
If she can pull it off, it will naturally prove negative for many of us, as it implies that she and Starmer will remain safe, until the next fuck up, anyway.