3 points
There’s no amibuity with year first and done properly like YYYY-MM-DD.
Your reasoning is that the ambiguity exists due to using numbers. The ambiguity is only for 2/3 numerical methods
1 point
As monstrous as it is yyyy-mm-dd could also be misconstrued by said unfortunate Americans as yyyy-dd-mm because…well…yeah. As noted elsewhere this dd mmm yyyy format also works nicely in written and verbal communication as 12th of august where no one ever is going to write or speak to each other twenty twenty three august twelfth. So again, more universal and less ambiguous.
