Your first source does not support your statement. While there is theoretically a quadratic component, in their words: > We found that, at least for the desig

Your first source does not support your statement. While there is theoretically a quadratic component, in their words: > We found that, at least for the design space and technologies we explored, the quadratic component is very small relative to the other components. Hence, the delay of the decoder is linearly dependent on the issue width.