So your telling me for a bloke of Gomes size he should be hobbling off and missing weeks of games because he gets the odd collision with an opposition player?
Have you seen his past injury record?
Have you ever seen him try run off a challenge and carry on rather than hobbling straight off the field?
As I said its complete speculation on my part but I would be shocked if say Richarlison or Digne etc. would miss the amount of game time Gomes does in the same circumstances and you have to ask the question why when its not muscular injuries affecting him but knocks that combative midfielders get week in week out.