Well, everything is the original timeline - that's the premise of making Star Trek spinoffs. What sells is seeing Kirk, Spock and the Klingons, and naturally this thus is what we always get. DSC is demonstrably not an exception now, while certain other spinoffs (ENT) took their sweet time getting there, others got there immediately against the creators' original wishes (TNG), and some never quite managed it but OTOH never managed to convince the audience otherwise, either (TOS movies).
Timo Saloniemi
Timo Saloniemi