Again it’s an opportunity thing like Stringer.
Smith was so good as a HFF given goal nous and tackling that they kept him there. Still racking up 20+ possessions games often.
Both of them never really got a chance to play midfield as they were needed to play forward in their respective sides.
We don’t need either to. We need them as mids & they will both excel at it IMO. The fact they both play forward so well just helpful for their ability to hit scoreboard as midfielders and also team flexibility/rotations.