As far as I understand it, the core aspect of an impending “MOASS” is that GME stock is still shorted > 100%, but SI is currently reported at around 15%[0].
In other words, the canonical measure that represents the ratio of uncovered shorts to the float is ... wrong? There are people who are short, but are not short?
From what I got, the majority of the actual short would be hidden in some method of put-call options shenanigans (not sure what it is now, but there was at some point the equivalent of 2 times the float in $<2 puts a year out)