It's not?
Actually, if they use one set of rules, it’s what would motivate MU Georgiou to replace PUGeorgiou. As she would never lose her throne, no Buran destruction, no Lorca, no Spore drive etc. Tyler never dies, Voq never dies...yes it resets the whole series, but it ends on a ‘needs of the many’ for Burnham, where all she has experienced this year, positive and negative, never happens. She has to give up her relationship with Tyler to save him and literally everyone else.
Is it cheap reset buttoning an entire series? Probably. If it wasn’t thematically consistent, which it would be...and would have worked in the alleged anthology model.