What is the explanation of the hadith "If you were to uncover yourselves, you would not bury one another," and what is the fatwa regarding the state of a person who is "uncovered"?

This hadith was mentioned by the author of Kashf al-Khafa and attributed to al-Mujalasah by al-Daynuri. Its meaning is: "If some of you knew the innermost secrets of others, you would find it burdensome to escort their funeral, and it would not be easy to find someone to attest to its authenticity." As for the matter of an uncovered deceased, it is obligatory to cover them, because burying the dead is a communal obligation (fard kifayah) by consensus.