I couldn't get through the proposal, but the only thing I can think of is this:-
To my knowledge, there have been about 40+ sci-fi comedies.
The only ones that can truly be regarded as a success spanning multiple seasons over several years are Futurama
and Red Dwarf
Would any TV executive dream of greenlighting a comedy that not only has to overcome the anti-sci fi comedy hurdles to match that, but also tears the guts out of a franchise with 500+ hours dedicated to it?
Or to look at it another way, would the showrunners of Law and Order
greenlight a police sitcom with the Law and Order
We all remember how well the Starsky & Hutch
movie went down!