I’m only an armchair physicist and haven’t read anything on this but your article, but it seems to me this might actually disprove the Many Worlds interpretation. If two experimenters get contradictory but equally valid results in same world, then wouldn’t it be more akin to how, in Relativity, two observers can measure lengths and durations differently but both be correct? There is no “splitting” of worlds in the latter, so why should there be in the former?