You're absolutely right, it's intentional: Those justices intentionally switch off the part of their brain that deciphers what words actually mean when they write dissents with this bs
The acceptance of these late-arriving ballots effectively postpones the date on which the electorate’s choice is made
The act of ballots getting to the counting office, is not when the electorate's choice is made, by any stretch of the word, de facto or de jure. It is just about how long it takes ballots to get to the offices. In my eyes a similar argument under that twisted definition would be, if a precinct has not reported a result by 11:59PM election day for whatever reason, then that would also effectively postpone the date the choice is made. Should they just not count those votes?

Okay. Next Dem President should with Congress create a new Judicial Reform Office. Use the unitary executive power the conservative justices so endow and fire the Supremely Corrupt Six.