I read code in many languages and honestly I am not sure this is true. Assuming you understand what the ?? symbol combo means (which is a big assumption, and IMO a legit reason to reject the syntax addition on its own), it is much more readable than the if x is None else combo to me, since the latter can be more easily misread (to say if x else) and requires more mental attention. I assume this is quite subjective, however.
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