2016 CBR600RR - 10w40 ?

Since the JASO spec lists the minimum HTHS at 2.9cst rather than grade, wouldn't motors built to this spec be designed to have sufficient MOFT at 2.9cst?
Yes, I understand more HTHS drives more headroom OFT.
Yes, I understand that oil shears and 30 weights' virgin minimum HTHS is 2.9cst, meaning apart from monogrades and premium VM-using multigrades, it would most likely drop below that.
 
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