These aren't world records. First, are the plates weighed? There can be a 1-2% variance on regular plates. Ivanko competition plates are different than regular gym plates.
Mendy's lift could be as light 988 or as 1028.
I think some powerlifting rules are dumb, espcially the IPF rules. However, I do agree with what they do for a world record. Plates are weighed, benches must be certain specs, as well as bars. Judges have to be a certain level, and so on.
I love to see these exhibitions as great feats of strength, but I don't put them on the same level as a world record.