These couple of sentences make no sense:
We also know that Electors cannot be elected by their States in December until the election has been Certified. The results of these elections must be certified and announced by the U.S. House of Representatives on January 6th after the 538 State Electors have announced their Presidential preference.
It only means that Electors must be chosen by state parties according to election and apportionment rules in December and sent to Congress for Certification on January 6th
Yes, I pointed this out in my article. It must be done on January 6th and the President must leave office January 20th. If for whatever reason there is no “Qualified” President Elect ready to take office on that date then the “Contingent Election” process kicks-in and the Speaker of the House becomes acting President until either the House can select the President from the top three vote winners, or failing that, if the Senate selects a V.P. he/she replaces the Speaker as acting President. See Section 3 of the 20th Amendment, as modified by the Presidential Succession Act of 1947.