Nice observation... probably just luck... but one can hope
At a supposed 60 TH/s, the variance must of been extreme to find those 3 blocks by chance. March is coming around, it's about time for another announcement.
iirc gen3 datacenter will be 1ph once filled with new chips. 3 blocks is nothing compared to what it will be with 1ph.
I think its impossible to go from tapeout to working miners in ~10 days.