It wont do any good, they don't want it to be that big and choose to ignore both the official size announcement and diagrams because they think they know better than the actual individuals who designed the new models and animated them on screen.
There really is no helping them, I can only assume they choose to be miserable about it, every now and then they bring up the subject again in the hope that reality has somehow changed since the last time, it hasn't and it wont.
Its no surprise that they have reimagined both the design and size of ships for the new show/films with all the advances in CGI that have been achieved since the 60s-80s, everything is high definition and you cant get away with using household items anymore as the models, so the ships have to be designed properly and that means the older smaller designs of the Enterprise just wont cut it anymore as it becomes clear very quickly that it wont all fit in the older dimensions.
It also enables the CGI people to add lots more detail to the ships and for larger sets providing more options and space for the actors and scriptwriters, MU Lorca's man cave on the Discovery is a great example of this.
I am expecting at least a change in size for the Constitution class if/when we see one as it has been confirmed to be one of the most powerful ships in the fleet which means it isn't going to be a minnow, perhaps even a nice redesign like we got with the Europa and all the aztec motifs on the hull, I think it looked great.
Shame about the Admiral being a pratt though.
