I cant disagree with your comment.
However I would argue that any Manager worth their salt would look at worst case scenarios (and I am sure Ralph and his team do) and would be concerned about goalscoring options if Danny Ings was injured.
Personally I would like to replace Adams and Long if we had the cash with a quick mobile forward (possibly left footed) and a Pelle type who would provide more options in the air.
However Long has been given an extended contract and I doubt we have the cash to splash out on additional forwards unless Che Adams is transferred.
Of course all this changes if one of the top clubs comes in with a top dollar offer which suits the club and Danny Ings,