Ah the classic “wants their cake and wants to eat it too” being thrown by stone fox here though I don't see the tara game doing aswell as they think. Didn't want to make Tara a main Li because that would mean changing the story in a way they don't want to which is fine(even if i didn't like it)as ultimately it is the dev decision. There are examples on this site of games where dev changed stories to pander to the audience which ended up abandoned as the dev lost interest in making a game that wasn't what they wanted anymore.
But if the whole in an alternate reality thing is real then it is a rather cheap attempt of erasing Tara backstory which is a rather important reason why people like her while still trying to catch the Tara lightning in a bottle popularity. Reasons to do that are probably to clear the relationship between Tara and the MC so playing the 2nd game MC don't feel like the 2nd choice, rebound guy. Won't even delve into the virgin thing, 3 words of mass destruction, sloppy seconds or cheating on previous mc. But at this point it's not even Tara anymore so why just keep the same model, create a new character and start fresh. Dev really dug itself into a hole with this thing with MC, Jaye and Tara acting as a conduit between them. Game would have progressed fine without the MC/Tara and Tara/Jaye sex scenes and the hints of her liking mc.
Imagine this Chasing sunsets starts us playing douchebag and vividly describe how douchebag and Jaye met, liked each other, fucked then douchebag left her for Tara. Prologue ends, real story starts with us playing MC now. Epic game right, guaranteed to succeed