Gloves for goalkeepers restrict heat loss from the hands and cuase discomfort. To alleviate this problem, material A has been incorporated into gloves to reduce the amount of heat.
This is a excerpt from a textbook on writing. The second sentence has present perfect. But,I don't understand what effect does present perfect tense bring out in the sentence.
Practically, the incorporation already happened before mentioning of the incorporation in the text. In that sense, past simple tense seems right.
Also, assuming it is not important to provide the time the incorporation is done in the original context, I think present simple tense is okay too, just for telling the completed state of the incorporation at present.
Based on those, I carefully concluded past, present tense works in place of present perfect. Could you judge those considerations on each tense and contrast each meaning with that of present perfect?