> also interesting that wikipedia already marked Biden as president-elect
It has long been standard to refer to candidates as President-Elect once one the results of the election of electors is reasonably clear. One might argue that it is not technically accurate until after the Congress tallies the votes of the Electoral College and announces the result of that tally, but it is the long accepted usage and the use of it to refer to Biden at this point is in no way noteworthy or a deviation from what long-established practice.
It has long been standard to refer to candidates as President-Elect once one the results of the election of electors is reasonably clear. One might argue that it is not technically accurate until after the Congress tallies the votes of the Electoral College and announces the result of that tally, but it is the long accepted usage and the use of it to refer to Biden at this point is in no way noteworthy or a deviation from what long-established practice.