Agreed, he is in the squad based upon his past reputation. It is similar to how we hung on to Matuc and Mata and all the others for so long. Would he get close to City, Pool, Arsenal squads... no way so he should be no where near ours. Unfortunately he isn't alone and Varane and Casimero are showing similar ageing issues amongst others who just never had the quality to begin with.
It's absolutely crazy isn't it. You can go through City, Liverpool, Arsenal, Spurs, Aston Villa etc...and I can't really think of one player who doesn't have physical attributes. OK, there are some, like Odegaard or Bernardo Silva, who aren't exactly pacey or super strong, but their stamina and work-rate is still top-notch.
We have Maguire, Casemiro, Varane, Antony, Sancho and Eriksen who are all prohibitively slow.
Rashford avoids collisions and contact, ducks headers and generally ambles around the pitch.
Shaw is increasingly injury-prone.
Even Bruno, who presses well enough, is really slow, so when he does make those forward runs from midfield, he's often not get the legs to get on the end of the pass